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Finding the Fourth Proportional to 489,750.74, 734,909.73 and 205,415.99

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Solution

The fourth proportional to 489,750.74, 734,909.73 and 205,415.99 is: 308,242.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,750.74 : 734,909.73 = 205,415.99 : x
  2. Step 2: Convert to fraction form
    489,750.74/734,909.73 = 205,415.99/x
  3. Step 3: Cross multiply
    489,750.74x = 734,909.73 × 205,415.99
  4. Step 4: Simplify right side
    489,750.74x = 150,962,206,074.03
  5. Step 5: Solve for x
    x = 150,962,206,074.03/489,750.74
  6. Step 6: Final answer
    x = 308,242.94

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