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Finding the Fourth Proportional to 339,874.11, 469,049.20 and 224,954.79

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Solution

The fourth proportional to 339,874.11, 469,049.20 and 224,954.79 is: 310,452.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,874.11 : 469,049.20 = 224,954.79 : x
  2. Step 2: Convert to fraction form
    339,874.11/469,049.20 = 224,954.79/x
  3. Step 3: Cross multiply
    339,874.11x = 469,049.20 × 224,954.79
  4. Step 4: Simplify right side
    339,874.11x = 105,514,861,964.35
  5. Step 5: Solve for x
    x = 105,514,861,964.35/339,874.11
  6. Step 6: Final answer
    x = 310,452.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.