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Finding the Fourth Proportional to 978.55, 1,467.82 and 362.54

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Solution

The fourth proportional to 978.55, 1,467.82 and 362.54 is: 543.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    978.55 : 1,467.82 = 362.54 : x
  2. Step 2: Convert to fraction form
    978.55/1,467.82 = 362.54/x
  3. Step 3: Cross multiply
    978.55x = 1,467.82 × 362.54
  4. Step 4: Simplify right side
    978.55x = 532,147.59
  5. Step 5: Solve for x
    x = 532,147.59/978.55
  6. Step 6: Final answer
    x = 543.81

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