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Finding the Third Proportional to 191,874 and 419,964

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Solution

The third proportional to 191,874 and 419,964 is: 919,195.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,874 : 419,964 = 419,964 : x
  2. Step 2: Convert to fraction form
    191,874/419,964 = 419,964/x
  3. Step 3: Cross multiply
    191,874x = 419,964 × 419,964
  4. Step 4: Simplify right side
    191,874x = 176,369,761,296
  5. Step 5: Solve for x
    x = 176,369,761,296/191,874
  6. Step 6: Final answer
    x = 919,195.73

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.