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Finding the Fourth Proportional to 1,317,055.68, 1,978,283.52 and 868,423.68

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Solution

The fourth proportional to 1,317,055.68, 1,978,283.52 and 868,423.68 is: 1,304,415.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,055.68 : 1,978,283.52 = 868,423.68 : x
  2. Step 2: Convert to fraction form
    1,317,055.68/1,978,283.52 = 868,423.68/x
  3. Step 3: Cross multiply
    1,317,055.68x = 1,978,283.52 × 868,423.68
  4. Step 4: Simplify right side
    1,317,055.68x = 1,717,988,254,521.75
  5. Step 5: Solve for x
    x = 1,717,988,254,521.75/1,317,055.68
  6. Step 6: Final answer
    x = 1,304,415.81

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