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Finding the Fourth Proportional to 451,432.52, 622,972.90 and 247,479.73

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Solution

The fourth proportional to 451,432.52, 622,972.90 and 247,479.73 is: 341,519.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,432.52 : 622,972.90 = 247,479.73 : x
  2. Step 2: Convert to fraction form
    451,432.52/622,972.90 = 247,479.73/x
  3. Step 3: Cross multiply
    451,432.52x = 622,972.90 × 247,479.73
  4. Step 4: Simplify right side
    451,432.52x = 154,173,165,089.32
  5. Step 5: Solve for x
    x = 154,173,165,089.32/451,432.52
  6. Step 6: Final answer
    x = 341,519.85

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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.