Home / 381,936.32-527,054.24-212,180.80

Finding the Fourth Proportional to 381,936.32, 527,054.24 and 212,180.80

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Solution

The fourth proportional to 381,936.32, 527,054.24 and 212,180.80 is: 292,799.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,936.32 : 527,054.24 = 212,180.80 : x
  2. Step 2: Convert to fraction form
    381,936.32/527,054.24 = 212,180.80/x
  3. Step 3: Cross multiply
    381,936.32x = 527,054.24 × 212,180.80
  4. Step 4: Simplify right side
    381,936.32x = 111,830,790,286.59
  5. Step 5: Solve for x
    x = 111,830,790,286.59/381,936.32
  6. Step 6: Final answer
    x = 292,799.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.