Home / 381,932.32-527,048.72-212,176.80

Finding the Fourth Proportional to 381,932.32, 527,048.72 and 212,176.80

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Solution

The fourth proportional to 381,932.32, 527,048.72 and 212,176.80 is: 292,794.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,932.32 : 527,048.72 = 212,176.80 : x
  2. Step 2: Convert to fraction form
    381,932.32/527,048.72 = 212,176.80/x
  3. Step 3: Cross multiply
    381,932.32x = 527,048.72 × 212,176.80
  4. Step 4: Simplify right side
    381,932.32x = 111,827,510,853.70
  5. Step 5: Solve for x
    x = 111,827,510,853.70/381,932.32
  6. Step 6: Final answer
    x = 292,794.05

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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.