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Finding the Fourth Proportional to 429,822.80, 644,734.20 and 114,311.60

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Solution

The fourth proportional to 429,822.80, 644,734.20 and 114,311.60 is: 171,467.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,822.80 : 644,734.20 = 114,311.60 : x
  2. Step 2: Convert to fraction form
    429,822.80/644,734.20 = 114,311.60/x
  3. Step 3: Cross multiply
    429,822.80x = 644,734.20 × 114,311.60
  4. Step 4: Simplify right side
    429,822.80x = 73,700,597,976.72
  5. Step 5: Solve for x
    x = 73,700,597,976.72/429,822.80
  6. Step 6: Final answer
    x = 171,467.40

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