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Finding the Fourth Proportional to 425,989.43, 587,864.62 and 232,397.15

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Solution

The fourth proportional to 425,989.43, 587,864.62 and 232,397.15 is: 320,707.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,989.43 : 587,864.62 = 232,397.15 : x
  2. Step 2: Convert to fraction form
    425,989.43/587,864.62 = 232,397.15/x
  3. Step 3: Cross multiply
    425,989.43x = 587,864.62 × 232,397.15
  4. Step 4: Simplify right side
    425,989.43x = 136,618,063,162.50
  5. Step 5: Solve for x
    x = 136,618,063,162.50/425,989.43
  6. Step 6: Final answer
    x = 320,707.63

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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.