Home / 861,229.22-1,188,487.77-479,249.42

Finding the Fourth Proportional to 861,229.22, 1,188,487.77 and 479,249.42

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Solution

The fourth proportional to 861,229.22, 1,188,487.77 and 479,249.42 is: 661,359.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,229.22 : 1,188,487.77 = 479,249.42 : x
  2. Step 2: Convert to fraction form
    861,229.22/1,188,487.77 = 479,249.42/x
  3. Step 3: Cross multiply
    861,229.22x = 1,188,487.77 × 479,249.42
  4. Step 4: Simplify right side
    861,229.22x = 569,582,074,449.59
  5. Step 5: Solve for x
    x = 569,582,074,449.59/861,229.22
  6. Step 6: Final answer
    x = 661,359.44

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Double scale
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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.