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Finding the Fourth Proportional to 512,189.88, 768,676.86 and 231,903.96

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Solution

The fourth proportional to 512,189.88, 768,676.86 and 231,903.96 is: 348,033.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,189.88 : 768,676.86 = 231,903.96 : x
  2. Step 2: Convert to fraction form
    512,189.88/768,676.86 = 231,903.96/x
  3. Step 3: Cross multiply
    512,189.88x = 768,676.86 × 231,903.96
  4. Step 4: Simplify right side
    512,189.88x = 178,259,207,794.37
  5. Step 5: Solve for x
    x = 178,259,207,794.37/512,189.88
  6. Step 6: Final answer
    x = 348,033.44

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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.