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420 kilograms is about 60 times as heavy as a Bowling Ball
In other words, it's 61.7294334 times the weight of a Bowling Ball, and the weight of a Bowling Ball is 0.016199728 times that amount.
(most common selection among male bowlers)
With an allowable range of 4.989516070 kilograms, the most-preferred bowling ball weight among adult, male bowlers is 6.803885550 kilograms. Because regulation balls measure the same diameter irrespective of their weight, ball density varies by size and balls weighing less than about 5 kg (11 lbs) will float in water.
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