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Finding the Fourth Proportional to 534,923.76, 738,270.50 and 331,040.36

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Solution

The fourth proportional to 534,923.76, 738,270.50 and 331,040.36 is: 456,882.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,923.76 : 738,270.50 = 331,040.36 : x
  2. Step 2: Convert to fraction form
    534,923.76/738,270.50 = 331,040.36/x
  3. Step 3: Cross multiply
    534,923.76x = 738,270.50 × 331,040.36
  4. Step 4: Simplify right side
    534,923.76x = 244,397,332,097.38
  5. Step 5: Solve for x
    x = 244,397,332,097.38/534,923.76
  6. Step 6: Final answer
    x = 456,882.55

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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.