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Finding the Fourth Proportional to 445,753.69, 667,449.54 and 234,948.76

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Solution

The fourth proportional to 445,753.69, 667,449.54 and 234,948.76 is: 351,800.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,753.69 : 667,449.54 = 234,948.76 : x
  2. Step 2: Convert to fraction form
    445,753.69/667,449.54 = 234,948.76/x
  3. Step 3: Cross multiply
    445,753.69x = 667,449.54 × 234,948.76
  4. Step 4: Simplify right side
    445,753.69x = 156,816,445,470.75
  5. Step 5: Solve for x
    x = 156,816,445,470.75/445,753.69
  6. Step 6: Final answer
    x = 351,800.66

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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.