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Finding the Third Proportional to 873,690 and 1,918,686

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Solution

The third proportional to 873,690 and 1,918,686 is: 4,213,572.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,690 : 1,918,686 = 1,918,686 : x
  2. Step 2: Convert to fraction form
    873,690/1,918,686 = 1,918,686/x
  3. Step 3: Cross multiply
    873,690x = 1,918,686 × 1,918,686
  4. Step 4: Simplify right side
    873,690x = 3,681,355,966,596
  5. Step 5: Solve for x
    x = 3,681,355,966,596/873,690
  6. Step 6: Final answer
    x = 4,213,572.28

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.