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Finding the Third Proportional to 706,171 and 906,705

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Solution

The third proportional to 706,171 and 906,705 is: 1,164,185.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,171 : 906,705 = 906,705 : x
  2. Step 2: Convert to fraction form
    706,171/906,705 = 906,705/x
  3. Step 3: Cross multiply
    706,171x = 906,705 × 906,705
  4. Step 4: Simplify right side
    706,171x = 822,113,957,025
  5. Step 5: Solve for x
    x = 822,113,957,025/706,171
  6. Step 6: Final answer
    x = 1,164,185.38

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.