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Finding the Third Proportional to 809,436 and 1,187,909

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Solution

The third proportional to 809,436 and 1,187,909 is: 1,743,346.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,436 : 1,187,909 = 1,187,909 : x
  2. Step 2: Convert to fraction form
    809,436/1,187,909 = 1,187,909/x
  3. Step 3: Cross multiply
    809,436x = 1,187,909 × 1,187,909
  4. Step 4: Simplify right side
    809,436x = 1,411,127,792,281
  5. Step 5: Solve for x
    x = 1,411,127,792,281/809,436
  6. Step 6: Final answer
    x = 1,743,346.96

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.