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Finding the Fourth Proportional to 714,517.67, 986,030.48 and 392,233.25

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Solution

The fourth proportional to 714,517.67, 986,030.48 and 392,233.25 is: 541,279.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,517.67 : 986,030.48 = 392,233.25 : x
  2. Step 2: Convert to fraction form
    714,517.67/986,030.48 = 392,233.25/x
  3. Step 3: Cross multiply
    714,517.67x = 986,030.48 × 392,233.25
  4. Step 4: Simplify right side
    714,517.67x = 386,753,939,769.46
  5. Step 5: Solve for x
    x = 386,753,939,769.46/714,517.67
  6. Step 6: Final answer
    x = 541,279.74

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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.