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Finding the Fourth Proportional to 425,564.31, 587,278.60 and 234,580.89

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Solution

The fourth proportional to 425,564.31, 587,278.60 and 234,580.89 is: 323,721.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,564.31 : 587,278.60 = 234,580.89 : x
  2. Step 2: Convert to fraction form
    425,564.31/587,278.60 = 234,580.89/x
  3. Step 3: Cross multiply
    425,564.31x = 587,278.60 × 234,580.89
  4. Step 4: Simplify right side
    425,564.31x = 137,764,336,665.95
  5. Step 5: Solve for x
    x = 137,764,336,665.95/425,564.31
  6. Step 6: Final answer
    x = 323,721.55

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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.