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Finding the Fourth Proportional to 396,451.75, 547,103.21 and 224,366.59

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Solution

The fourth proportional to 396,451.75, 547,103.21 and 224,366.59 is: 309,625.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,451.75 : 547,103.21 = 224,366.59 : x
  2. Step 2: Convert to fraction form
    396,451.75/547,103.21 = 224,366.59/x
  3. Step 3: Cross multiply
    396,451.75x = 547,103.21 × 224,366.59
  4. Step 4: Simplify right side
    396,451.75x = 122,751,680,483.92
  5. Step 5: Solve for x
    x = 122,751,680,483.92/396,451.75
  6. Step 6: Final answer
    x = 309,625.78

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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.