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Finding the Fourth Proportional to 425,481.92, 587,154.94 and 231,895.75

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Solution

The fourth proportional to 425,481.92, 587,154.94 and 231,895.75 is: 320,010.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,481.92 : 587,154.94 = 231,895.75 : x
  2. Step 2: Convert to fraction form
    425,481.92/587,154.94 = 231,895.75/x
  3. Step 3: Cross multiply
    425,481.92x = 587,154.94 × 231,895.75
  4. Step 4: Simplify right side
    425,481.92x = 136,158,735,177.51
  5. Step 5: Solve for x
    x = 136,158,735,177.51/425,481.92
  6. Step 6: Final answer
    x = 320,010.63

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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.