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Finding the Third Proportional to 198,044 and 412,408

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Solution

The third proportional to 198,044 and 412,408 is: 858,800.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,044 : 412,408 = 412,408 : x
  2. Step 2: Convert to fraction form
    198,044/412,408 = 412,408/x
  3. Step 3: Cross multiply
    198,044x = 412,408 × 412,408
  4. Step 4: Simplify right side
    198,044x = 170,080,358,464
  5. Step 5: Solve for x
    x = 170,080,358,464/198,044
  6. Step 6: Final answer
    x = 858,800.86

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.