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Finding the Third Proportional to 393,835.50 and 863,912.25

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Solution

The third proportional to 393,835.50 and 863,912.25 is: 1,895,066.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,835.50 : 863,912.25 = 863,912.25 : x
  2. Step 2: Convert to fraction form
    393,835.50/863,912.25 = 863,912.25/x
  3. Step 3: Cross multiply
    393,835.50x = 863,912.25 × 863,912.25
  4. Step 4: Simplify right side
    393,835.50x = 746,344,375,700.06
  5. Step 5: Solve for x
    x = 746,344,375,700.06/393,835.50
  6. Step 6: Final answer
    x = 1,895,066.28

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.