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Finding the Fourth Proportional to 499,672.80, 749,509.20 and 472,116.60

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Solution

The fourth proportional to 499,672.80, 749,509.20 and 472,116.60 is: 708,174.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,672.80 : 749,509.20 = 472,116.60 : x
  2. Step 2: Convert to fraction form
    499,672.80/749,509.20 = 472,116.60/x
  3. Step 3: Cross multiply
    499,672.80x = 749,509.20 × 472,116.60
  4. Step 4: Simplify right side
    499,672.80x = 353,855,735,172.72
  5. Step 5: Solve for x
    x = 353,855,735,172.72/499,672.80
  6. Step 6: Final answer
    x = 708,174.90

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