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Finding the Third Proportional to 207,903 and 449,042

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Solution

The third proportional to 207,903 and 449,042 is: 969,869.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,903 : 449,042 = 449,042 : x
  2. Step 2: Convert to fraction form
    207,903/449,042 = 449,042/x
  3. Step 3: Cross multiply
    207,903x = 449,042 × 449,042
  4. Step 4: Simplify right side
    207,903x = 201,638,717,764
  5. Step 5: Solve for x
    x = 201,638,717,764/207,903
  6. Step 6: Final answer
    x = 969,869.21

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.