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Finding the Fourth Proportional to 425,494.36, 587,164.92 and 231,897.96

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Solution

The fourth proportional to 425,494.36, 587,164.92 and 231,897.96 is: 320,009.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,494.36 : 587,164.92 = 231,897.96 : x
  2. Step 2: Convert to fraction form
    425,494.36/587,164.92 = 231,897.96/x
  3. Step 3: Cross multiply
    425,494.36x = 587,164.92 × 231,897.96
  4. Step 4: Simplify right side
    425,494.36x = 136,162,347,131.56
  5. Step 5: Solve for x
    x = 136,162,347,131.56/425,494.36
  6. Step 6: Final answer
    x = 320,009.76

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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.