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Finding the Third Proportional to 206,840 and 446,688

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Solution

The third proportional to 206,840 and 446,688 is: 964,659.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,840 : 446,688 = 446,688 : x
  2. Step 2: Convert to fraction form
    206,840/446,688 = 446,688/x
  3. Step 3: Cross multiply
    206,840x = 446,688 × 446,688
  4. Step 4: Simplify right side
    206,840x = 199,530,169,344
  5. Step 5: Solve for x
    x = 199,530,169,344/206,840
  6. Step 6: Final answer
    x = 964,659.49

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.