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Finding the Third Proportional to 819,815,870.25 and 1,770,265,617.75

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Solution

The third proportional to 819,815,870.25 and 1,770,265,617.75 is: 3,822,614,895.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,815,870.25 : 1,770,265,617.75 = 1,770,265,617.75 : x
  2. Step 2: Convert to fraction form
    819,815,870.25/1,770,265,617.75 = 1,770,265,617.75/x
  3. Step 3: Cross multiply
    819,815,870.25x = 1,770,265,617.75 × 1,770,265,617.75
  4. Step 4: Simplify right side
    819,815,870.25x = 3,133,840,357,387,789,312
  5. Step 5: Solve for x
    x = 3,133,840,357,387,789,312/819,815,870.25
  6. Step 6: Final answer
    x = 3,822,614,895.75

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.