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Finding the Third Proportional to 179,992 and 386,694

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Solution

The third proportional to 179,992 and 386,694 is: 830,771.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,992 : 386,694 = 386,694 : x
  2. Step 2: Convert to fraction form
    179,992/386,694 = 386,694/x
  3. Step 3: Cross multiply
    179,992x = 386,694 × 386,694
  4. Step 4: Simplify right side
    179,992x = 149,532,249,636
  5. Step 5: Solve for x
    x = 149,532,249,636/179,992
  6. Step 6: Final answer
    x = 830,771.64

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.