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Finding the Fourth Proportional to 560.61, 839.61 and 329.04

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Solution

The fourth proportional to 560.61, 839.61 and 329.04 is: 492.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.61 : 839.61 = 329.04 : x
  2. Step 2: Convert to fraction form
    560.61/839.61 = 329.04/x
  3. Step 3: Cross multiply
    560.61x = 839.61 × 329.04
  4. Step 4: Simplify right side
    560.61x = 276,265.27
  5. Step 5: Solve for x
    x = 276,265.27/560.61
  6. Step 6: Final answer
    x = 492.79

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