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Finding the Fourth Proportional to 393,655.39, 543,057.33 and 232,402.41

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Solution

The fourth proportional to 393,655.39, 543,057.33 and 232,402.41 is: 320,604.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,655.39 : 543,057.33 = 232,402.41 : x
  2. Step 2: Convert to fraction form
    393,655.39/543,057.33 = 232,402.41/x
  3. Step 3: Cross multiply
    393,655.39x = 543,057.33 × 232,402.41
  4. Step 4: Simplify right side
    393,655.39x = 126,207,832,260.17
  5. Step 5: Solve for x
    x = 126,207,832,260.17/393,655.39
  6. Step 6: Final answer
    x = 320,604.86

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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.