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Finding the Fourth Proportional to 665,007.05, 997,650.77 and 215,692.99

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Solution

The fourth proportional to 665,007.05, 997,650.77 and 215,692.99 is: 323,584.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,007.05 : 997,650.77 = 215,692.99 : x
  2. Step 2: Convert to fraction form
    665,007.05/997,650.77 = 215,692.99/x
  3. Step 3: Cross multiply
    665,007.05x = 997,650.77 × 215,692.99
  4. Step 4: Simplify right side
    665,007.05x = 215,186,272,568.85
  5. Step 5: Solve for x
    x = 215,186,272,568.85/665,007.05
  6. Step 6: Final answer
    x = 323,584.95

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