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Finding the Fourth Proportional to 417,957.40, 626,614.62 and 207,432.04

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Solution

The fourth proportional to 417,957.40, 626,614.62 and 207,432.04 is: 310,988.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,957.40 : 626,614.62 = 207,432.04 : x
  2. Step 2: Convert to fraction form
    417,957.40/626,614.62 = 207,432.04/x
  3. Step 3: Cross multiply
    417,957.40x = 626,614.62 × 207,432.04
  4. Step 4: Simplify right side
    417,957.40x = 129,979,948,920.43
  5. Step 5: Solve for x
    x = 129,979,948,920.43/417,957.40
  6. Step 6: Final answer
    x = 310,988.51

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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.