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Finding the Third Proportional to 1,277,816.81 and 1,917,660.56

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Solution

The third proportional to 1,277,816.81 and 1,917,660.56 is: 2,877,894.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,816.81 : 1,917,660.56 = 1,917,660.56 : x
  2. Step 2: Convert to fraction form
    1,277,816.81/1,917,660.56 = 1,917,660.56/x
  3. Step 3: Cross multiply
    1,277,816.81x = 1,917,660.56 × 1,917,660.56
  4. Step 4: Simplify right side
    1,277,816.81x = 3,677,422,032,967.82
  5. Step 5: Solve for x
    x = 3,677,422,032,967.82/1,277,816.81
  6. Step 6: Final answer
    x = 2,877,894.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.