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Finding the Fourth Proportional to 574,856.64, 861,909.48 and 275,327.64

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Solution

The fourth proportional to 574,856.64, 861,909.48 and 275,327.64 is: 412,811.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,856.64 : 861,909.48 = 275,327.64 : x
  2. Step 2: Convert to fraction form
    574,856.64/861,909.48 = 275,327.64/x
  3. Step 3: Cross multiply
    574,856.64x = 861,909.48 × 275,327.64
  4. Step 4: Simplify right side
    574,856.64x = 237,307,503,022.03
  5. Step 5: Solve for x
    x = 237,307,503,022.03/574,856.64
  6. Step 6: Final answer
    x = 412,811.62

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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.