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Finding the Third Proportional to 190,338 and 423,231

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Solution

The third proportional to 190,338 and 423,231 is: 941,086.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,338 : 423,231 = 423,231 : x
  2. Step 2: Convert to fraction form
    190,338/423,231 = 423,231/x
  3. Step 3: Cross multiply
    190,338x = 423,231 × 423,231
  4. Step 4: Simplify right side
    190,338x = 179,124,479,361
  5. Step 5: Solve for x
    x = 179,124,479,361/190,338
  6. Step 6: Final answer
    x = 941,086.27

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.