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Finding the Fourth Proportional to 625,957.46, 938,988.71 and 199,553.86

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Solution

The fourth proportional to 625,957.46, 938,988.71 and 199,553.86 is: 299,347.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,957.46 : 938,988.71 = 199,553.86 : x
  2. Step 2: Convert to fraction form
    625,957.46/938,988.71 = 199,553.86/x
  3. Step 3: Cross multiply
    625,957.46x = 938,988.71 × 199,553.86
  4. Step 4: Simplify right side
    625,957.46x = 187,378,821,576.92
  5. Step 5: Solve for x
    x = 187,378,821,576.92/625,957.46
  6. Step 6: Final answer
    x = 299,347.53

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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.