Home / 431,569.02-647,326.39-132,025.80

Finding the Fourth Proportional to 431,569.02, 647,326.39 and 132,025.80

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Solution

The fourth proportional to 431,569.02, 647,326.39 and 132,025.80 is: 198,030.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,569.02 : 647,326.39 = 132,025.80 : x
  2. Step 2: Convert to fraction form
    431,569.02/647,326.39 = 132,025.80/x
  3. Step 3: Cross multiply
    431,569.02x = 647,326.39 × 132,025.80
  4. Step 4: Simplify right side
    431,569.02x = 85,463,784,500.86
  5. Step 5: Solve for x
    x = 85,463,784,500.86/431,569.02
  6. Step 6: Final answer
    x = 198,030.40

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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.