Finding the Fourth Proportional to 546,531,193.80, 819,796,790.70 and 493,812,246.60
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Solution
The fourth proportional to 546,531,193.80, 819,796,790.70 and 493,812,246.60 is: 740,718,369.90
Step by Step Solution
- Step 1: Write the proportion equation
546,531,193.80 : 819,796,790.70 = 493,812,246.60 : x - Step 2: Convert to fraction form
546,531,193.80/819,796,790.70 = 493,812,246.60/x - Step 3: Cross multiply
546,531,193.80x = 819,796,790.70 × 493,812,246.60 - Step 4: Simplify right side
546,531,193.80x = 404,825,694,971,037,056 - Step 5: Solve for x
x = 404,825,694,971,037,056/546,531,193.80 - Step 6: Final answer
x = 740,718,369.90
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.