Home / 664,116.40-995,008.20-545,143.60

Finding the Fourth Proportional to 664,116.40, 995,008.20 and 545,143.60

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Solution

The fourth proportional to 664,116.40, 995,008.20 and 545,143.60 is: 816,757.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,116.40 : 995,008.20 = 545,143.60 : x
  2. Step 2: Convert to fraction form
    664,116.40/995,008.20 = 545,143.60/x
  3. Step 3: Cross multiply
    664,116.40x = 995,008.20 × 545,143.60
  4. Step 4: Simplify right side
    664,116.40x = 542,422,352,177.52
  5. Step 5: Solve for x
    x = 542,422,352,177.52/664,116.40
  6. Step 6: Final answer
    x = 816,757.95

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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.