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Finding the Third Proportional to 191,906 and 418,744

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Solution

The third proportional to 191,906 and 418,744 is: 913,710.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,906 : 418,744 = 418,744 : x
  2. Step 2: Convert to fraction form
    191,906/418,744 = 418,744/x
  3. Step 3: Cross multiply
    191,906x = 418,744 × 418,744
  4. Step 4: Simplify right side
    191,906x = 175,346,537,536
  5. Step 5: Solve for x
    x = 175,346,537,536/191,906
  6. Step 6: Final answer
    x = 913,710.55

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.