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Finding the Third Proportional to 671,646 and 930,906

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Solution

The third proportional to 671,646 and 930,906 is: 1,290,242.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,646 : 930,906 = 930,906 : x
  2. Step 2: Convert to fraction form
    671,646/930,906 = 930,906/x
  3. Step 3: Cross multiply
    671,646x = 930,906 × 930,906
  4. Step 4: Simplify right side
    671,646x = 866,585,980,836
  5. Step 5: Solve for x
    x = 866,585,980,836/671,646
  6. Step 6: Final answer
    x = 1,290,242.15

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.