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Finding the Fourth Proportional to 425,540.99, 587,239.56 and 234,572.15

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Solution

The fourth proportional to 425,540.99, 587,239.56 and 234,572.15 is: 323,705.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,540.99 : 587,239.56 = 234,572.15 : x
  2. Step 2: Convert to fraction form
    425,540.99/587,239.56 = 234,572.15/x
  3. Step 3: Cross multiply
    425,540.99x = 587,239.56 × 234,572.15
  4. Step 4: Simplify right side
    425,540.99x = 137,750,047,622.35
  5. Step 5: Solve for x
    x = 137,750,047,622.35/425,540.99
  6. Step 6: Final answer
    x = 323,705.71

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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.