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Finding the Third Proportional to 299,319 and 464,718

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Solution

The third proportional to 299,319 and 464,718 is: 721,513.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,319 : 464,718 = 464,718 : x
  2. Step 2: Convert to fraction form
    299,319/464,718 = 464,718/x
  3. Step 3: Cross multiply
    299,319x = 464,718 × 464,718
  4. Step 4: Simplify right side
    299,319x = 215,962,819,524
  5. Step 5: Solve for x
    x = 215,962,819,524/299,319
  6. Step 6: Final answer
    x = 721,513.90

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.