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Finding the Third Proportional to 311,067 and 467,790

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Solution

The third proportional to 311,067 and 467,790 is: 703,473.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,067 : 467,790 = 467,790 : x
  2. Step 2: Convert to fraction form
    311,067/467,790 = 467,790/x
  3. Step 3: Cross multiply
    311,067x = 467,790 × 467,790
  4. Step 4: Simplify right side
    311,067x = 218,827,484,100
  5. Step 5: Solve for x
    x = 218,827,484,100/311,067
  6. Step 6: Final answer
    x = 703,473.80

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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.