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Finding the Third Proportional to 325,542 and 709,890

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Solution

The third proportional to 325,542 and 709,890 is: 1,548,014.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,542 : 709,890 = 709,890 : x
  2. Step 2: Convert to fraction form
    325,542/709,890 = 709,890/x
  3. Step 3: Cross multiply
    325,542x = 709,890 × 709,890
  4. Step 4: Simplify right side
    325,542x = 503,943,812,100
  5. Step 5: Solve for x
    x = 503,943,812,100/325,542
  6. Step 6: Final answer
    x = 1,548,014.73

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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.