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Finding the Third Proportional to 664,708 and 1,031,206

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Solution

The third proportional to 664,708 and 1,031,206 is: 1,599,778.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,708 : 1,031,206 = 1,031,206 : x
  2. Step 2: Convert to fraction form
    664,708/1,031,206 = 1,031,206/x
  3. Step 3: Cross multiply
    664,708x = 1,031,206 × 1,031,206
  4. Step 4: Simplify right side
    664,708x = 1,063,385,814,436
  5. Step 5: Solve for x
    x = 1,063,385,814,436/664,708
  6. Step 6: Final answer
    x = 1,599,778.87

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.