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Finding the Third Proportional to 709,978 and 1,544,356

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Solution

The third proportional to 709,978 and 1,544,356 is: 3,359,308.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,978 : 1,544,356 = 1,544,356 : x
  2. Step 2: Convert to fraction form
    709,978/1,544,356 = 1,544,356/x
  3. Step 3: Cross multiply
    709,978x = 1,544,356 × 1,544,356
  4. Step 4: Simplify right side
    709,978x = 2,385,035,454,736
  5. Step 5: Solve for x
    x = 2,385,035,454,736/709,978
  6. Step 6: Final answer
    x = 3,359,308.96

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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.