Home / 861,534.35-1,189,028.87-494,154.80

Finding the Fourth Proportional to 861,534.35, 1,189,028.87 and 494,154.80

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Solution

The fourth proportional to 861,534.35, 1,189,028.87 and 494,154.80 is: 681,997.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,534.35 : 1,189,028.87 = 494,154.80 : x
  2. Step 2: Convert to fraction form
    861,534.35/1,189,028.87 = 494,154.80/x
  3. Step 3: Cross multiply
    861,534.35x = 1,189,028.87 × 494,154.80
  4. Step 4: Simplify right side
    861,534.35x = 587,564,323,449.08
  5. Step 5: Solve for x
    x = 587,564,323,449.08/861,534.35
  6. Step 6: Final answer
    x = 681,997.56

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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.