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Finding the Fourth Proportional to 1,172.53, 1,759.67 and 556.24

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Solution

The fourth proportional to 1,172.53, 1,759.67 and 556.24 is: 834.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172.53 : 1,759.67 = 556.24 : x
  2. Step 2: Convert to fraction form
    1,172.53/1,759.67 = 556.24/x
  3. Step 3: Cross multiply
    1,172.53x = 1,759.67 × 556.24
  4. Step 4: Simplify right side
    1,172.53x = 978,798.84
  5. Step 5: Solve for x
    x = 978,798.84/1,172.53
  6. Step 6: Final answer
    x = 834.78

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