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Finding the Third Proportional to 1,255,414 and 1,611,919

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Solution

The third proportional to 1,255,414 and 1,611,919 is: 2,069,662.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,414 : 1,611,919 = 1,611,919 : x
  2. Step 2: Convert to fraction form
    1,255,414/1,611,919 = 1,611,919/x
  3. Step 3: Cross multiply
    1,255,414x = 1,611,919 × 1,611,919
  4. Step 4: Simplify right side
    1,255,414x = 2,598,282,862,561
  5. Step 5: Solve for x
    x = 2,598,282,862,561/1,255,414
  6. Step 6: Final answer
    x = 2,069,662.17

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.