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Finding the Fourth Proportional to 568,971.20, 853,876.74 and 269,451.20

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Solution

The fourth proportional to 568,971.20, 853,876.74 and 269,451.20 is: 404,375.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,971.20 : 853,876.74 = 269,451.20 : x
  2. Step 2: Convert to fraction form
    568,971.20/853,876.74 = 269,451.20/x
  3. Step 3: Cross multiply
    568,971.20x = 853,876.74 × 269,451.20
  4. Step 4: Simplify right side
    568,971.20x = 230,078,112,245.09
  5. Step 5: Solve for x
    x = 230,078,112,245.09/568,971.20
  6. Step 6: Final answer
    x = 404,375.67

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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.