Home / 431,536.04-647,280.56-132,016.60

Finding the Fourth Proportional to 431,536.04, 647,280.56 and 132,016.60

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Solution

The fourth proportional to 431,536.04, 647,280.56 and 132,016.60 is: 198,017.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,536.04 : 647,280.56 = 132,016.60 : x
  2. Step 2: Convert to fraction form
    431,536.04/647,280.56 = 132,016.60/x
  3. Step 3: Cross multiply
    431,536.04x = 647,280.56 × 132,016.60
  4. Step 4: Simplify right side
    431,536.04x = 85,451,777,489.14
  5. Step 5: Solve for x
    x = 85,451,777,489.14/431,536.04
  6. Step 6: Final answer
    x = 198,017.71

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1.5x scale

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.