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Finding the Fourth Proportional to 463,572.80, 695,359.20 and 402,747.20

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Solution

The fourth proportional to 463,572.80, 695,359.20 and 402,747.20 is: 604,120.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,572.80 : 695,359.20 = 402,747.20 : x
  2. Step 2: Convert to fraction form
    463,572.80/695,359.20 = 402,747.20/x
  3. Step 3: Cross multiply
    463,572.80x = 695,359.20 × 402,747.20
  4. Step 4: Simplify right side
    463,572.80x = 280,053,970,794.24
  5. Step 5: Solve for x
    x = 280,053,970,794.24/463,572.80
  6. Step 6: Final answer
    x = 604,120.80

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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.