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Finding the Fourth Proportional to 423,693.29, 584,554.48 and 239,906.74

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Solution

The fourth proportional to 423,693.29, 584,554.48 and 239,906.74 is: 330,990.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,693.29 : 584,554.48 = 239,906.74 : x
  2. Step 2: Convert to fraction form
    423,693.29/584,554.48 = 239,906.74/x
  3. Step 3: Cross multiply
    423,693.29x = 584,554.48 × 239,906.74
  4. Step 4: Simplify right side
    423,693.29x = 140,238,561,002.88
  5. Step 5: Solve for x
    x = 140,238,561,002.88/423,693.29
  6. Step 6: Final answer
    x = 330,990.76

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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.