Home / 431,936.46-647,919.90-116,400.96

Finding the Fourth Proportional to 431,936.46, 647,919.90 and 116,400.96

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Solution

The fourth proportional to 431,936.46, 647,919.90 and 116,400.96 is: 174,605.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,936.46 : 647,919.90 = 116,400.96 : x
  2. Step 2: Convert to fraction form
    431,936.46/647,919.90 = 116,400.96/x
  3. Step 3: Cross multiply
    431,936.46x = 647,919.90 × 116,400.96
  4. Step 4: Simplify right side
    431,936.46x = 75,418,498,363.10
  5. Step 5: Solve for x
    x = 75,418,498,363.10/431,936.46
  6. Step 6: Final answer
    x = 174,605.54

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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.