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Finding the Third Proportional to 207,920 and 449,029

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Solution

The third proportional to 207,920 and 449,029 is: 969,733.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,920 : 449,029 = 449,029 : x
  2. Step 2: Convert to fraction form
    207,920/449,029 = 449,029/x
  3. Step 3: Cross multiply
    207,920x = 449,029 × 449,029
  4. Step 4: Simplify right side
    207,920x = 201,627,042,841
  5. Step 5: Solve for x
    x = 201,627,042,841/207,920
  6. Step 6: Final answer
    x = 969,733.76

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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.