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Finding the Fourth Proportional to 543,791.52, 815,770.26 and 277,406.69

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Solution

The fourth proportional to 543,791.52, 815,770.26 and 277,406.69 is: 416,152.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,791.52 : 815,770.26 = 277,406.69 : x
  2. Step 2: Convert to fraction form
    543,791.52/815,770.26 = 277,406.69/x
  3. Step 3: Cross multiply
    543,791.52x = 815,770.26 × 277,406.69
  4. Step 4: Simplify right side
    543,791.52x = 226,300,123,548.19
  5. Step 5: Solve for x
    x = 226,300,123,548.19/543,791.52
  6. Step 6: Final answer
    x = 416,152.36

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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.