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Finding the Third Proportional to 784,623 and 1,212,422.50

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Solution

The third proportional to 784,623 and 1,212,422.50 is: 1,873,470.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,623 : 1,212,422.50 = 1,212,422.50 : x
  2. Step 2: Convert to fraction form
    784,623/1,212,422.50 = 1,212,422.50/x
  3. Step 3: Cross multiply
    784,623x = 1,212,422.50 × 1,212,422.50
  4. Step 4: Simplify right side
    784,623x = 1,469,968,318,506.25
  5. Step 5: Solve for x
    x = 1,469,968,318,506.25/784,623
  6. Step 6: Final answer
    x = 1,873,470.85

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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.