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Finding the Fourth Proportional to 473.08, 652.26 and 398.20

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Solution

The fourth proportional to 473.08, 652.26 and 398.20 is: 549.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.08 : 652.26 = 398.20 : x
  2. Step 2: Convert to fraction form
    473.08/652.26 = 398.20/x
  3. Step 3: Cross multiply
    473.08x = 652.26 × 398.20
  4. Step 4: Simplify right side
    473.08x = 259,729.93
  5. Step 5: Solve for x
    x = 259,729.93/473.08
  6. Step 6: Final answer
    x = 549.02

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