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Finding the Fourth Proportional to 396,561.20, 595,230.60 and 197,106.80

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Solution

The fourth proportional to 396,561.20, 595,230.60 and 197,106.80 is: 295,853.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,561.20 : 595,230.60 = 197,106.80 : x
  2. Step 2: Convert to fraction form
    396,561.20/595,230.60 = 197,106.80/x
  3. Step 3: Cross multiply
    396,561.20x = 595,230.60 × 197,106.80
  4. Step 4: Simplify right side
    396,561.20x = 117,323,998,828.08
  5. Step 5: Solve for x
    x = 117,323,998,828.08/396,561.20
  6. Step 6: Final answer
    x = 295,853.45

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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.