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Finding the Fourth Proportional to 425,404.87, 587,062.65 and 234,425.09

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Solution

The fourth proportional to 425,404.87, 587,062.65 and 234,425.09 is: 323,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,404.87 : 587,062.65 = 234,425.09 : x
  2. Step 2: Convert to fraction form
    425,404.87/587,062.65 = 234,425.09/x
  3. Step 3: Cross multiply
    425,404.87x = 587,062.65 × 234,425.09
  4. Step 4: Simplify right side
    425,404.87x = 137,622,216,908.64
  5. Step 5: Solve for x
    x = 137,622,216,908.64/425,404.87
  6. Step 6: Final answer
    x = 323,508.80

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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.