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Finding the Fourth Proportional to 485,046.10, 727,569.15 and 415,062.10

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Solution

The fourth proportional to 485,046.10, 727,569.15 and 415,062.10 is: 622,593.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,046.10 : 727,569.15 = 415,062.10 : x
  2. Step 2: Convert to fraction form
    485,046.10/727,569.15 = 415,062.10/x
  3. Step 3: Cross multiply
    485,046.10x = 727,569.15 × 415,062.10
  4. Step 4: Simplify right side
    485,046.10x = 301,986,379,294.22
  5. Step 5: Solve for x
    x = 301,986,379,294.22/485,046.10
  6. Step 6: Final answer
    x = 622,593.15

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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.