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Finding the Third Proportional to 408,993.75 and 889,933.50

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Solution

The third proportional to 408,993.75 and 889,933.50 is: 1,936,415.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,993.75 : 889,933.50 = 889,933.50 : x
  2. Step 2: Convert to fraction form
    408,993.75/889,933.50 = 889,933.50/x
  3. Step 3: Cross multiply
    408,993.75x = 889,933.50 × 889,933.50
  4. Step 4: Simplify right side
    408,993.75x = 791,981,634,422.25
  5. Step 5: Solve for x
    x = 791,981,634,422.25/408,993.75
  6. Step 6: Final answer
    x = 1,936,415.00

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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.