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Finding the Fourth Proportional to 972,003.20, 1,458,004.80 and 866,940.80

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Solution

The fourth proportional to 972,003.20, 1,458,004.80 and 866,940.80 is: 1,300,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,003.20 : 1,458,004.80 = 866,940.80 : x
  2. Step 2: Convert to fraction form
    972,003.20/1,458,004.80 = 866,940.80/x
  3. Step 3: Cross multiply
    972,003.20x = 1,458,004.80 × 866,940.80
  4. Step 4: Simplify right side
    972,003.20x = 1,264,003,847,715.84
  5. Step 5: Solve for x
    x = 1,264,003,847,715.84/972,003.20
  6. Step 6: Final answer
    x = 1,300,411.20

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