Finding the Fourth Proportional to 623,912.10, 861,104.57 and 352,057.07
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Solution
The fourth proportional to 623,912.10, 861,104.57 and 352,057.07 is: 485,898.49
Step by Step Solution
- Step 1: Write the proportion equation
623,912.10 : 861,104.57 = 352,057.07 : x - Step 2: Convert to fraction form
623,912.10/861,104.57 = 352,057.07/x - Step 3: Cross multiply
623,912.10x = 861,104.57 × 352,057.07 - Step 4: Simplify right side
623,912.10x = 303,157,945,812.00 - Step 5: Solve for x
x = 303,157,945,812.00/623,912.10 - Step 6: Final answer
x = 485,898.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.