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Finding the Fourth Proportional to 396,520.20, 595,169.10 and 197,065.80

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Solution

The fourth proportional to 396,520.20, 595,169.10 and 197,065.80 is: 295,791.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,520.20 : 595,169.10 = 197,065.80 : x
  2. Step 2: Convert to fraction form
    396,520.20/595,169.10 = 197,065.80/x
  3. Step 3: Cross multiply
    396,520.20x = 595,169.10 × 197,065.80
  4. Step 4: Simplify right side
    396,520.20x = 117,287,474,826.78
  5. Step 5: Solve for x
    x = 117,287,474,826.78/396,520.20
  6. Step 6: Final answer
    x = 295,791.93

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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.