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Finding the Third Proportional to 771,324 and 1,661,178.75

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Solution

The third proportional to 771,324 and 1,661,178.75 is: 3,577,633.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,324 : 1,661,178.75 = 1,661,178.75 : x
  2. Step 2: Convert to fraction form
    771,324/1,661,178.75 = 1,661,178.75/x
  3. Step 3: Cross multiply
    771,324x = 1,661,178.75 × 1,661,178.75
  4. Step 4: Simplify right side
    771,324x = 2,759,514,839,451.56
  5. Step 5: Solve for x
    x = 2,759,514,839,451.56/771,324
  6. Step 6: Final answer
    x = 3,577,633.83

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.