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Finding the Fourth Proportional to 396,763.62, 547,400.61 and 224,658.06

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Solution

The fourth proportional to 396,763.62, 547,400.61 and 224,658.06 is: 309,952.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,763.62 : 547,400.61 = 224,658.06 : x
  2. Step 2: Convert to fraction form
    396,763.62/547,400.61 = 224,658.06/x
  3. Step 3: Cross multiply
    396,763.62x = 547,400.61 × 224,658.06
  4. Step 4: Simplify right side
    396,763.62x = 122,977,959,085.42
  5. Step 5: Solve for x
    x = 122,977,959,085.42/396,763.62
  6. Step 6: Final answer
    x = 309,952.71

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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.