The changed object: IKEA KLIPPAN sofa
The correct adjustment: 1.6× the original shown size.

For Samsonite Freeform carry-on spinner, the published measurement is 58.42 cm: the exterior height including wheels, with the telescopic handle retracted and expansion zipper closed.
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IKEA lists the KLIPPAN two-seat sofa with Vissle grey cover, article 790.106.14, as 66 centimetres high. This comparison measures the assembled sofa from the feet to the top of the backrest, without added cushions.
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Manufacturer specification for Helinox Chair One: 650 mm; overall height of the assembled chair, not seat height.
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IKEA lists the black ADDE chair, article 902.142.85, as 77 centimetres high. This comparison measures the full assembled chair from the feet to the top of the backrest, not its 45-centimetre seat height.
SourceIllustrations shown individually, not to a shared scale.