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Finding the Third Proportional to 855,914 and 1,324,590

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Solution

The third proportional to 855,914 and 1,324,590 is: 2,049,900.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,914 : 1,324,590 = 1,324,590 : x
  2. Step 2: Convert to fraction form
    855,914/1,324,590 = 1,324,590/x
  3. Step 3: Cross multiply
    855,914x = 1,324,590 × 1,324,590
  4. Step 4: Simplify right side
    855,914x = 1,754,538,668,100
  5. Step 5: Solve for x
    x = 1,754,538,668,100/855,914
  6. Step 6: Final answer
    x = 2,049,900.65

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.