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Finding the Third Proportional to 888,471 and 1,918,789

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Solution

The third proportional to 888,471 and 1,918,789 is: 4,143,918.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,471 : 1,918,789 = 1,918,789 : x
  2. Step 2: Convert to fraction form
    888,471/1,918,789 = 1,918,789/x
  3. Step 3: Cross multiply
    888,471x = 1,918,789 × 1,918,789
  4. Step 4: Simplify right side
    888,471x = 3,681,751,226,521
  5. Step 5: Solve for x
    x = 3,681,751,226,521/888,471
  6. Step 6: Final answer
    x = 4,143,918.29

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.