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Finding the Third Proportional to 192,783 and 417,739

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Solution

The third proportional to 192,783 and 417,739 is: 905,193.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,783 : 417,739 = 417,739 : x
  2. Step 2: Convert to fraction form
    192,783/417,739 = 417,739/x
  3. Step 3: Cross multiply
    192,783x = 417,739 × 417,739
  4. Step 4: Simplify right side
    192,783x = 174,505,872,121
  5. Step 5: Solve for x
    x = 174,505,872,121/192,783
  6. Step 6: Final answer
    x = 905,193.26

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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.