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Finding the Third Proportional to 415,622 and 886,540

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Solution

The third proportional to 415,622 and 886,540 is: 1,891,028.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,622 : 886,540 = 886,540 : x
  2. Step 2: Convert to fraction form
    415,622/886,540 = 886,540/x
  3. Step 3: Cross multiply
    415,622x = 886,540 × 886,540
  4. Step 4: Simplify right side
    415,622x = 785,953,171,600
  5. Step 5: Solve for x
    x = 785,953,171,600/415,622
  6. Step 6: Final answer
    x = 1,891,028.80

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.