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Finding the Fourth Proportional to 417,691.11, 626,436.26 and 192,835.56

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Solution

The fourth proportional to 417,691.11, 626,436.26 and 192,835.56 is: 289,206.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,691.11 : 626,436.26 = 192,835.56 : x
  2. Step 2: Convert to fraction form
    417,691.11/626,436.26 = 192,835.56/x
  3. Step 3: Cross multiply
    417,691.11x = 626,436.26 × 192,835.56
  4. Step 4: Simplify right side
    417,691.11x = 120,799,187,001.41
  5. Step 5: Solve for x
    x = 120,799,187,001.41/417,691.11
  6. Step 6: Final answer
    x = 289,206.99

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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.