Home / 861,244.61-1,188,499.95-539,132.31

Finding the Fourth Proportional to 861,244.61, 1,188,499.95 and 539,132.31

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Solution

The fourth proportional to 861,244.61, 1,188,499.95 and 539,132.31 is: 743,991.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,244.61 : 1,188,499.95 = 539,132.31 : x
  2. Step 2: Convert to fraction form
    861,244.61/1,188,499.95 = 539,132.31/x
  3. Step 3: Cross multiply
    861,244.61x = 1,188,499.95 × 539,132.31
  4. Step 4: Simplify right side
    861,244.61x = 640,758,723,478.39
  5. Step 5: Solve for x
    x = 640,758,723,478.39/861,244.61
  6. Step 6: Final answer
    x = 743,991.57

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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.