Home / 861,255.60-1,291,014.96-541,635.90

Finding the Fourth Proportional to 861,255.60, 1,291,014.96 and 541,635.90

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Solution

The fourth proportional to 861,255.60, 1,291,014.96 and 541,635.90 is: 811,907.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,255.60 : 1,291,014.96 = 541,635.90 : x
  2. Step 2: Convert to fraction form
    861,255.60/1,291,014.96 = 541,635.90/x
  3. Step 3: Cross multiply
    861,255.60x = 1,291,014.96 × 541,635.90
  4. Step 4: Simplify right side
    861,255.60x = 699,260,049,773.06
  5. Step 5: Solve for x
    x = 699,260,049,773.06/861,255.60
  6. Step 6: Final answer
    x = 811,907.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.