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Finding the Fourth Proportional to 352,002.80, 527,287.40 and 218,473.20

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Solution

The fourth proportional to 352,002.80, 527,287.40 and 218,473.20 is: 327,264.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,002.80 : 527,287.40 = 218,473.20 : x
  2. Step 2: Convert to fraction form
    352,002.80/527,287.40 = 218,473.20/x
  3. Step 3: Cross multiply
    352,002.80x = 527,287.40 × 218,473.20
  4. Step 4: Simplify right side
    352,002.80x = 115,198,165,597.68
  5. Step 5: Solve for x
    x = 115,198,165,597.68/352,002.80
  6. Step 6: Final answer
    x = 327,264.91

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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.