Answer:
45/7
Explanation:
The ratio of volumes is the cube of the scale factor for similar figures.
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sf³ = (729 m³)/(2.744 m³) = 9³/1.4³
sf = ∛(9³/1.4³) = 9/1.4 = 45/7
The scale factor between the larger and smaller cubes is 45/7.
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