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Finding the Third Proportional to 207,996 and 313,464

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Solution

The third proportional to 207,996 and 313,464 is: 472,411.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,996 : 313,464 = 313,464 : x
  2. Step 2: Convert to fraction form
    207,996/313,464 = 313,464/x
  3. Step 3: Cross multiply
    207,996x = 313,464 × 313,464
  4. Step 4: Simplify right side
    207,996x = 98,259,679,296
  5. Step 5: Solve for x
    x = 98,259,679,296/207,996
  6. Step 6: Final answer
    x = 472,411.39

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.