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Finding the Fourth Proportional to 531.55, 797.33 and 289.62

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Solution

The fourth proportional to 531.55, 797.33 and 289.62 is: 434.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.55 : 797.33 = 289.62 : x
  2. Step 2: Convert to fraction form
    531.55/797.33 = 289.62/x
  3. Step 3: Cross multiply
    531.55x = 797.33 × 289.62
  4. Step 4: Simplify right side
    531.55x = 230,919.72
  5. Step 5: Solve for x
    x = 230,919.72/531.55
  6. Step 6: Final answer
    x = 434.42

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