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Finding the Fourth Proportional to 1,321,040.44, 1,978,196.76 and 870,395.08

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Solution

The fourth proportional to 1,321,040.44, 1,978,196.76 and 870,395.08 is: 1,303,376.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,040.44 : 1,978,196.76 = 870,395.08 : x
  2. Step 2: Convert to fraction form
    1,321,040.44/1,978,196.76 = 870,395.08/x
  3. Step 3: Cross multiply
    1,321,040.44x = 1,978,196.76 × 870,395.08
  4. Step 4: Simplify right side
    1,321,040.44x = 1,721,812,727,175.94
  5. Step 5: Solve for x
    x = 1,721,812,727,175.94/1,321,040.44
  6. Step 6: Final answer
    x = 1,303,376.24

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