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Finding the Fourth Proportional to 352,003.20, 527,227.20 and 272,860.80

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Solution

The fourth proportional to 352,003.20, 527,227.20 and 272,860.80 is: 408,688.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,003.20 : 527,227.20 = 272,860.80 : x
  2. Step 2: Convert to fraction form
    352,003.20/527,227.20 = 272,860.80/x
  3. Step 3: Cross multiply
    352,003.20x = 527,227.20 × 272,860.80
  4. Step 4: Simplify right side
    352,003.20x = 143,859,635,573.76
  5. Step 5: Solve for x
    x = 143,859,635,573.76/352,003.20
  6. Step 6: Final answer
    x = 408,688.43

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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.