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Finding the Fourth Proportional to 425,998.14, 587,874.15 and 235,019.58

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Solution

The fourth proportional to 425,998.14, 587,874.15 and 235,019.58 is: 324,325.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,998.14 : 587,874.15 = 235,019.58 : x
  2. Step 2: Convert to fraction form
    425,998.14/587,874.15 = 235,019.58/x
  3. Step 3: Cross multiply
    425,998.14x = 587,874.15 × 235,019.58
  4. Step 4: Simplify right side
    425,998.14x = 138,161,935,825.86
  5. Step 5: Solve for x
    x = 138,161,935,825.86/425,998.14
  6. Step 6: Final answer
    x = 324,325.21

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Similar ratio
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1.5x scale

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.