Home / 521,108.20-781,079.10-296,576.20

Finding the Fourth Proportional to 521,108.20, 781,079.10 and 296,576.20

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Solution

The fourth proportional to 521,108.20, 781,079.10 and 296,576.20 is: 444,532.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,108.20 : 781,079.10 = 296,576.20 : x
  2. Step 2: Convert to fraction form
    521,108.20/781,079.10 = 296,576.20/x
  3. Step 3: Cross multiply
    521,108.20x = 781,079.10 × 296,576.20
  4. Step 4: Simplify right side
    521,108.20x = 231,649,471,377.42
  5. Step 5: Solve for x
    x = 231,649,471,377.42/521,108.20
  6. Step 6: Final answer
    x = 444,532.39

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1.5x scale

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.