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Finding the Fourth Proportional to 518,609.32, 715,814.02 and 337,771.88

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Solution

The fourth proportional to 518,609.32, 715,814.02 and 337,771.88 is: 466,211.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,609.32 : 715,814.02 = 337,771.88 : x
  2. Step 2: Convert to fraction form
    518,609.32/715,814.02 = 337,771.88/x
  3. Step 3: Cross multiply
    518,609.32x = 715,814.02 × 337,771.88
  4. Step 4: Simplify right side
    518,609.32x = 241,781,847,265.76
  5. Step 5: Solve for x
    x = 241,781,847,265.76/518,609.32
  6. Step 6: Final answer
    x = 466,211.92

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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.