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Finding the Third Proportional to 543,288 and 1,179,990

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Solution

The third proportional to 543,288 and 1,179,990 is: 2,562,869.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,288 : 1,179,990 = 1,179,990 : x
  2. Step 2: Convert to fraction form
    543,288/1,179,990 = 1,179,990/x
  3. Step 3: Cross multiply
    543,288x = 1,179,990 × 1,179,990
  4. Step 4: Simplify right side
    543,288x = 1,392,376,400,100
  5. Step 5: Solve for x
    x = 1,392,376,400,100/543,288
  6. Step 6: Final answer
    x = 2,562,869.79

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.