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Finding the Third Proportional to 190,928 and 291,414

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Solution

The third proportional to 190,928 and 291,414 is: 444,786.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,928 : 291,414 = 291,414 : x
  2. Step 2: Convert to fraction form
    190,928/291,414 = 291,414/x
  3. Step 3: Cross multiply
    190,928x = 291,414 × 291,414
  4. Step 4: Simplify right side
    190,928x = 84,922,119,396
  5. Step 5: Solve for x
    x = 84,922,119,396/190,928
  6. Step 6: Final answer
    x = 444,786.09

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.