Home / 861,691.84-1,189,096.32-493,905.28

Finding the Fourth Proportional to 861,691.84, 1,189,096.32 and 493,905.28

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Solution

The fourth proportional to 861,691.84, 1,189,096.32 and 493,905.28 is: 681,567.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,691.84 : 1,189,096.32 = 493,905.28 : x
  2. Step 2: Convert to fraction form
    861,691.84/1,189,096.32 = 493,905.28/x
  3. Step 3: Cross multiply
    861,691.84x = 1,189,096.32 × 493,905.28
  4. Step 4: Simplify right side
    861,691.84x = 587,300,950,876.57
  5. Step 5: Solve for x
    x = 587,300,950,876.57/861,691.84
  6. Step 6: Final answer
    x = 681,567.27

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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.