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Finding the Fourth Proportional to 384.47, 576.94 and 141

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Solution

The fourth proportional to 384.47, 576.94 and 141 is: 211.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    384.47 : 576.94 = 141 : x
  2. Step 2: Convert to fraction form
    384.47/576.94 = 141/x
  3. Step 3: Cross multiply
    384.47x = 576.94 × 141
  4. Step 4: Simplify right side
    384.47x = 81,348.54
  5. Step 5: Solve for x
    x = 81,348.54/384.47
  6. Step 6: Final answer
    x = 211.59

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