The weight of the object in kg is 4.5 kg
Given the measure of the weight of an object in grams, we want to find its weight in kg
1 kg = 1000 g
Thus; x kg = 4500g
1 * 4500 = x * 1000
4500 = 1000x
x = 4500/1000
x = 4.5 kg
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