Home / 715,174.74-986,951.25-392,914.62

Finding the Fourth Proportional to 715,174.74, 986,951.25 and 392,914.62

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Solution

The fourth proportional to 715,174.74, 986,951.25 and 392,914.62 is: 542,227.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,174.74 : 986,951.25 = 392,914.62 : x
  2. Step 2: Convert to fraction form
    715,174.74/986,951.25 = 392,914.62/x
  3. Step 3: Cross multiply
    715,174.74x = 986,951.25 × 392,914.62
  4. Step 4: Simplify right side
    715,174.74x = 387,787,575,352.28
  5. Step 5: Solve for x
    x = 387,787,575,352.28/715,174.74
  6. Step 6: Final answer
    x = 542,227.73

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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.