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Finding the Third Proportional to 639,868.50 and 966,606.19

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Solution

The third proportional to 639,868.50 and 966,606.19 is: 1,460,186.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,868.50 : 966,606.19 = 966,606.19 : x
  2. Step 2: Convert to fraction form
    639,868.50/966,606.19 = 966,606.19/x
  3. Step 3: Cross multiply
    639,868.50x = 966,606.19 × 966,606.19
  4. Step 4: Simplify right side
    639,868.50x = 934,327,521,713.29
  5. Step 5: Solve for x
    x = 934,327,521,713.29/639,868.50
  6. Step 6: Final answer
    x = 1,460,186.78

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.