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Finding the Fourth Proportional to 425,187.83, 586,765.55 and 231,604.52

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Solution

The fourth proportional to 425,187.83, 586,765.55 and 231,604.52 is: 319,617.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,187.83 : 586,765.55 = 231,604.52 : x
  2. Step 2: Convert to fraction form
    425,187.83/586,765.55 = 231,604.52/x
  3. Step 3: Cross multiply
    425,187.83x = 586,765.55 × 231,604.52
  4. Step 4: Simplify right side
    425,187.83x = 135,897,551,205.47
  5. Step 5: Solve for x
    x = 135,897,551,205.47/425,187.83
  6. Step 6: Final answer
    x = 319,617.69

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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.