Home / 431,569.15-647,326.55-132,025.95

Finding the Fourth Proportional to 431,569.15, 647,326.55 and 132,025.95

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Solution

The fourth proportional to 431,569.15, 647,326.55 and 132,025.95 is: 198,030.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,569.15 : 647,326.55 = 132,025.95 : x
  2. Step 2: Convert to fraction form
    431,569.15/647,326.55 = 132,025.95/x
  3. Step 3: Cross multiply
    431,569.15x = 647,326.55 × 132,025.95
  4. Step 4: Simplify right side
    431,569.15x = 85,463,903,054.04
  5. Step 5: Solve for x
    x = 85,463,903,054.04/431,569.15
  6. Step 6: Final answer
    x = 198,030.61

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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.