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Finding the Fourth Proportional to 425,381.30, 587,051.97 and 234,394.46

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Solution

The fourth proportional to 425,381.30, 587,051.97 and 234,394.46 is: 323,478.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,381.30 : 587,051.97 = 234,394.46 : x
  2. Step 2: Convert to fraction form
    425,381.30/587,051.97 = 234,394.46/x
  3. Step 3: Cross multiply
    425,381.30x = 587,051.97 × 234,394.46
  4. Step 4: Simplify right side
    425,381.30x = 137,601,729,500.09
  5. Step 5: Solve for x
    x = 137,601,729,500.09/425,381.30
  6. Step 6: Final answer
    x = 323,478.56

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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.