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Finding the Third Proportional to 190,292.25 and 409,288.88

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Solution

The third proportional to 190,292.25 and 409,288.88 is: 880,316.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,292.25 : 409,288.88 = 409,288.88 : x
  2. Step 2: Convert to fraction form
    190,292.25/409,288.88 = 409,288.88/x
  3. Step 3: Cross multiply
    190,292.25x = 409,288.88 × 409,288.88
  4. Step 4: Simplify right side
    190,292.25x = 167,517,383,198.77
  5. Step 5: Solve for x
    x = 167,517,383,198.77/190,292.25
  6. Step 6: Final answer
    x = 880,316.37

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.