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Finding the Third Proportional to 183,243 and 397,819

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Solution

The third proportional to 183,243 and 397,819 is: 863,661.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,243 : 397,819 = 397,819 : x
  2. Step 2: Convert to fraction form
    183,243/397,819 = 397,819/x
  3. Step 3: Cross multiply
    183,243x = 397,819 × 397,819
  4. Step 4: Simplify right side
    183,243x = 158,259,956,761
  5. Step 5: Solve for x
    x = 158,259,956,761/183,243
  6. Step 6: Final answer
    x = 863,661.68

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.