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Finding the Fourth Proportional to 1,976,598.12, 2,727,997.92 and 1,251,513.12

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Solution

The fourth proportional to 1,976,598.12, 2,727,997.92 and 1,251,513.12 is: 1,727,273.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976,598.12 : 2,727,997.92 = 1,251,513.12 : x
  2. Step 2: Convert to fraction form
    1,976,598.12/2,727,997.92 = 1,251,513.12/x
  3. Step 3: Cross multiply
    1,976,598.12x = 2,727,997.92 × 1,251,513.12
  4. Step 4: Simplify right side
    1,976,598.12x = 3,414,125,188,212.71
  5. Step 5: Solve for x
    x = 3,414,125,188,212.71/1,976,598.12
  6. Step 6: Final answer
    x = 1,727,273.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.