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Finding the Third Proportional to 555,866 and 1,212,100

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Solution

The third proportional to 555,866 and 1,212,100 is: 2,643,058.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,866 : 1,212,100 = 1,212,100 : x
  2. Step 2: Convert to fraction form
    555,866/1,212,100 = 1,212,100/x
  3. Step 3: Cross multiply
    555,866x = 1,212,100 × 1,212,100
  4. Step 4: Simplify right side
    555,866x = 1,469,186,410,000
  5. Step 5: Solve for x
    x = 1,469,186,410,000/555,866
  6. Step 6: Final answer
    x = 2,643,058.60

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.