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Finding the Fourth Proportional to 294.56, 441.70 and 172.86

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Solution

The fourth proportional to 294.56, 441.70 and 172.86 is: 259.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.56 : 441.70 = 172.86 : x
  2. Step 2: Convert to fraction form
    294.56/441.70 = 172.86/x
  3. Step 3: Cross multiply
    294.56x = 441.70 × 172.86
  4. Step 4: Simplify right side
    294.56x = 76,352.26
  5. Step 5: Solve for x
    x = 76,352.26/294.56
  6. Step 6: Final answer
    x = 259.21

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