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Finding the Fourth Proportional to 1,978,833.66, 2,969,667.72 and 842,392.62

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Solution

The fourth proportional to 1,978,833.66, 2,969,667.72 and 842,392.62 is: 1,264,192.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,833.66 : 2,969,667.72 = 842,392.62 : x
  2. Step 2: Convert to fraction form
    1,978,833.66/2,969,667.72 = 842,392.62/x
  3. Step 3: Cross multiply
    1,978,833.66x = 2,969,667.72 × 842,392.62
  4. Step 4: Simplify right side
    1,978,833.66x = 2,501,626,171,180.23
  5. Step 5: Solve for x
    x = 2,501,626,171,180.23/1,978,833.66
  6. Step 6: Final answer
    x = 1,264,192.25

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