Home / 412,772.20-619,158.30-132,317.80

Finding the Fourth Proportional to 412,772.20, 619,158.30 and 132,317.80

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Solution

The fourth proportional to 412,772.20, 619,158.30 and 132,317.80 is: 198,476.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,772.20 : 619,158.30 = 132,317.80 : x
  2. Step 2: Convert to fraction form
    412,772.20/619,158.30 = 132,317.80/x
  3. Step 3: Cross multiply
    412,772.20x = 619,158.30 × 132,317.80
  4. Step 4: Simplify right side
    412,772.20x = 81,925,664,107.74
  5. Step 5: Solve for x
    x = 81,925,664,107.74/412,772.20
  6. Step 6: Final answer
    x = 198,476.70

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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.