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Finding the Third Proportional to 627,783,661 and 979,821,144

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Solution

The third proportional to 627,783,661 and 979,821,144 is: 1,529,268,016.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,783,661 : 979,821,144 = 979,821,144 : x
  2. Step 2: Convert to fraction form
    627,783,661/979,821,144 = 979,821,144/x
  3. Step 3: Cross multiply
    627,783,661x = 979,821,144 × 979,821,144
  4. Step 4: Simplify right side
    627,783,661x = 960,049,474,229,468,672
  5. Step 5: Solve for x
    x = 960,049,474,229,468,672/627,783,661
  6. Step 6: Final answer
    x = 1,529,268,016.79

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.