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Finding the Third Proportional to 626,286 and 1,396,005

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Solution

The third proportional to 626,286 and 1,396,005 is: 3,111,725.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,286 : 1,396,005 = 1,396,005 : x
  2. Step 2: Convert to fraction form
    626,286/1,396,005 = 1,396,005/x
  3. Step 3: Cross multiply
    626,286x = 1,396,005 × 1,396,005
  4. Step 4: Simplify right side
    626,286x = 1,948,829,960,025
  5. Step 5: Solve for x
    x = 1,948,829,960,025/626,286
  6. Step 6: Final answer
    x = 3,111,725.25

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.