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Finding the Third Proportional to 194,205 and 415,394

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Solution

The third proportional to 194,205 and 415,394 is: 888,505.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,205 : 415,394 = 415,394 : x
  2. Step 2: Convert to fraction form
    194,205/415,394 = 415,394/x
  3. Step 3: Cross multiply
    194,205x = 415,394 × 415,394
  4. Step 4: Simplify right side
    194,205x = 172,552,175,236
  5. Step 5: Solve for x
    x = 172,552,175,236/194,205
  6. Step 6: Final answer
    x = 888,505.32

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.