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Finding the Fourth Proportional to 396,882.33, 547,698.20 and 215,594.30

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Solution

The fourth proportional to 396,882.33, 547,698.20 and 215,594.30 is: 297,520.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,882.33 : 547,698.20 = 215,594.30 : x
  2. Step 2: Convert to fraction form
    396,882.33/547,698.20 = 215,594.30/x
  3. Step 3: Cross multiply
    396,882.33x = 547,698.20 × 215,594.30
  4. Step 4: Simplify right side
    396,882.33x = 118,080,606,223.80
  5. Step 5: Solve for x
    x = 118,080,606,223.80/396,882.33
  6. Step 6: Final answer
    x = 297,520.44

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1.5x scale

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.