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Finding the Third Proportional to 229,778 and 336,657

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Solution

The third proportional to 229,778 and 336,657 is: 493,249.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,778 : 336,657 = 336,657 : x
  2. Step 2: Convert to fraction form
    229,778/336,657 = 336,657/x
  3. Step 3: Cross multiply
    229,778x = 336,657 × 336,657
  4. Step 4: Simplify right side
    229,778x = 113,337,935,649
  5. Step 5: Solve for x
    x = 113,337,935,649/229,778
  6. Step 6: Final answer
    x = 493,249.73

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.