Home / 625,961.13-863,747.15-371,262.57

Finding the Fourth Proportional to 625,961.13, 863,747.15 and 371,262.57

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Solution

The fourth proportional to 625,961.13, 863,747.15 and 371,262.57 is: 512,295.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,961.13 : 863,747.15 = 371,262.57 : x
  2. Step 2: Convert to fraction form
    625,961.13/863,747.15 = 371,262.57/x
  3. Step 3: Cross multiply
    625,961.13x = 863,747.15 × 371,262.57
  4. Step 4: Simplify right side
    625,961.13x = 320,676,984,882.86
  5. Step 5: Solve for x
    x = 320,676,984,882.86/625,961.13
  6. Step 6: Final answer
    x = 512,295.36

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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.