Home / 1,190,976.72-1,643,621.40-681,667.44

Finding the Fourth Proportional to 1,190,976.72, 1,643,621.40 and 681,667.44

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Solution

The fourth proportional to 1,190,976.72, 1,643,621.40 and 681,667.44 is: 940,743.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,976.72 : 1,643,621.40 = 681,667.44 : x
  2. Step 2: Convert to fraction form
    1,190,976.72/1,643,621.40 = 681,667.44/x
  3. Step 3: Cross multiply
    1,190,976.72x = 1,643,621.40 × 681,667.44
  4. Step 4: Simplify right side
    1,190,976.72x = 1,120,403,192,067.22
  5. Step 5: Solve for x
    x = 1,120,403,192,067.22/1,190,976.72
  6. Step 6: Final answer
    x = 940,743.15

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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.