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Finding the Third Proportional to 191,814 and 418,614

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Solution

The third proportional to 191,814 and 418,614 is: 913,581.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,814 : 418,614 = 418,614 : x
  2. Step 2: Convert to fraction form
    191,814/418,614 = 418,614/x
  3. Step 3: Cross multiply
    191,814x = 418,614 × 418,614
  4. Step 4: Simplify right side
    191,814x = 175,237,680,996
  5. Step 5: Solve for x
    x = 175,237,680,996/191,814
  6. Step 6: Final answer
    x = 913,581.29

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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.