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Finding the Fourth Proportional to 457,876.34, 631,869.34 and 253,958.49

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Solution

The fourth proportional to 457,876.34, 631,869.34 and 253,958.49 is: 350,462.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,876.34 : 631,869.34 = 253,958.49 : x
  2. Step 2: Convert to fraction form
    457,876.34/631,869.34 = 253,958.49/x
  3. Step 3: Cross multiply
    457,876.34x = 631,869.34 × 253,958.49
  4. Step 4: Simplify right side
    457,876.34x = 160,468,583,304.97
  5. Step 5: Solve for x
    x = 160,468,583,304.97/457,876.34
  6. Step 6: Final answer
    x = 350,462.71

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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.