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Finding the Fourth Proportional to 1,190.55, 1,786.23 and 1,075.53

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Solution

The fourth proportional to 1,190.55, 1,786.23 and 1,075.53 is: 1,613.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.55 : 1,786.23 = 1,075.53 : x
  2. Step 2: Convert to fraction form
    1,190.55/1,786.23 = 1,075.53/x
  3. Step 3: Cross multiply
    1,190.55x = 1,786.23 × 1,075.53
  4. Step 4: Simplify right side
    1,190.55x = 1,921,143.95
  5. Step 5: Solve for x
    x = 1,921,143.95/1,190.55
  6. Step 6: Final answer
    x = 1,613.66

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