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Finding the Fourth Proportional to 569,012.38, 853,939.53 and 269,493.48

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Solution

The fourth proportional to 569,012.38, 853,939.53 and 269,493.48 is: 404,439.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,012.38 : 853,939.53 = 269,493.48 : x
  2. Step 2: Convert to fraction form
    569,012.38/853,939.53 = 269,493.48/x
  3. Step 3: Cross multiply
    569,012.38x = 853,939.53 × 269,493.48
  4. Step 4: Simplify right side
    569,012.38x = 230,131,135,649.26
  5. Step 5: Solve for x
    x = 230,131,135,649.26/569,012.38
  6. Step 6: Final answer
    x = 404,439.60

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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.