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Finding the Fourth Proportional to 425,699.48, 587,469.87 and 232,105.59

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Solution

The fourth proportional to 425,699.48, 587,469.87 and 232,105.59 is: 320,308.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,699.48 : 587,469.87 = 232,105.59 : x
  2. Step 2: Convert to fraction form
    425,699.48/587,469.87 = 232,105.59/x
  3. Step 3: Cross multiply
    425,699.48x = 587,469.87 × 232,105.59
  4. Step 4: Simplify right side
    425,699.48x = 136,355,040,783.57
  5. Step 5: Solve for x
    x = 136,355,040,783.57/425,699.48
  6. Step 6: Final answer
    x = 320,308.22

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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.