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Finding the Fourth Proportional to 396,609.40, 595,254.30 and 160,121.80

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Solution

The fourth proportional to 396,609.40, 595,254.30 and 160,121.80 is: 240,320.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,609.40 : 595,254.30 = 160,121.80 : x
  2. Step 2: Convert to fraction form
    396,609.40/595,254.30 = 160,121.80/x
  3. Step 3: Cross multiply
    396,609.40x = 595,254.30 × 160,121.80
  4. Step 4: Simplify right side
    396,609.40x = 95,313,189,973.74
  5. Step 5: Solve for x
    x = 95,313,189,973.74/396,609.40
  6. Step 6: Final answer
    x = 240,320.05

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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.