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Finding the Third Proportional to 888,434 and 1,918,721

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Solution

The third proportional to 888,434 and 1,918,721 is: 4,143,797.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,434 : 1,918,721 = 1,918,721 : x
  2. Step 2: Convert to fraction form
    888,434/1,918,721 = 1,918,721/x
  3. Step 3: Cross multiply
    888,434x = 1,918,721 × 1,918,721
  4. Step 4: Simplify right side
    888,434x = 3,681,490,275,841
  5. Step 5: Solve for x
    x = 3,681,490,275,841/888,434
  6. Step 6: Final answer
    x = 4,143,797.15

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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.