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Finding the Fourth Proportional to 425,732.86, 587,481.30 and 234,742.18

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Solution

The fourth proportional to 425,732.86, 587,481.30 and 234,742.18 is: 323,927.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,732.86 : 587,481.30 = 234,742.18 : x
  2. Step 2: Convert to fraction form
    425,732.86/587,481.30 = 234,742.18/x
  3. Step 3: Cross multiply
    425,732.86x = 587,481.30 × 234,742.18
  4. Step 4: Simplify right side
    425,732.86x = 137,906,641,071.23
  5. Step 5: Solve for x
    x = 137,906,641,071.23/425,732.86
  6. Step 6: Final answer
    x = 323,927.64

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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.