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Finding the Fourth Proportional to 581.29, 871.93 and 196.81

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Solution

The fourth proportional to 581.29, 871.93 and 196.81 is: 295.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.29 : 871.93 = 196.81 : x
  2. Step 2: Convert to fraction form
    581.29/871.93 = 196.81/x
  3. Step 3: Cross multiply
    581.29x = 871.93 × 196.81
  4. Step 4: Simplify right side
    581.29x = 171,600.18
  5. Step 5: Solve for x
    x = 171,600.18/581.29
  6. Step 6: Final answer
    x = 295.21

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