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Finding the Third Proportional to 988,470 and 2,169,396

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Solution

The third proportional to 988,470 and 2,169,396 is: 4,761,175.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,470 : 2,169,396 = 2,169,396 : x
  2. Step 2: Convert to fraction form
    988,470/2,169,396 = 2,169,396/x
  3. Step 3: Cross multiply
    988,470x = 2,169,396 × 2,169,396
  4. Step 4: Simplify right side
    988,470x = 4,706,279,004,816
  5. Step 5: Solve for x
    x = 4,706,279,004,816/988,470
  6. Step 6: Final answer
    x = 4,761,175.36

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.