Home / 431,569.13-647,326.58-132,025.91

Finding the Fourth Proportional to 431,569.13, 647,326.58 and 132,025.91

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Solution

The fourth proportional to 431,569.13, 647,326.58 and 132,025.91 is: 198,030.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,569.13 : 647,326.58 = 132,025.91 : x
  2. Step 2: Convert to fraction form
    431,569.13/647,326.58 = 132,025.91/x
  3. Step 3: Cross multiply
    431,569.13x = 647,326.58 × 132,025.91
  4. Step 4: Simplify right side
    431,569.13x = 85,463,876,894.93
  5. Step 5: Solve for x
    x = 85,463,876,894.93/431,569.13
  6. Step 6: Final answer
    x = 198,030.56

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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.