Home / 714,513.29-986,024.45-392,228.87

Finding the Fourth Proportional to 714,513.29, 986,024.45 and 392,228.87

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Solution

The fourth proportional to 714,513.29, 986,024.45 and 392,228.87 is: 541,273.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,513.29 : 986,024.45 = 392,228.87 : x
  2. Step 2: Convert to fraction form
    714,513.29/986,024.45 = 392,228.87/x
  3. Step 3: Cross multiply
    714,513.29x = 986,024.45 × 392,228.87
  4. Step 4: Simplify right side
    714,513.29x = 386,747,253,854.73
  5. Step 5: Solve for x
    x = 386,747,253,854.73/714,513.29
  6. Step 6: Final answer
    x = 541,273.70

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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.