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Finding the Fourth Proportional to 512,234.70, 766,602.45 and 449,249.10

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Solution

The fourth proportional to 512,234.70, 766,602.45 and 449,249.10 is: 672,339.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,234.70 : 766,602.45 = 449,249.10 : x
  2. Step 2: Convert to fraction form
    512,234.70/766,602.45 = 449,249.10/x
  3. Step 3: Cross multiply
    512,234.70x = 766,602.45 × 449,249.10
  4. Step 4: Simplify right side
    512,234.70x = 344,395,460,720.30
  5. Step 5: Solve for x
    x = 344,395,460,720.30/512,234.70
  6. Step 6: Final answer
    x = 672,339.18

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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.