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Finding the Fourth Proportional to 770,489.80, 1,155,785.44 and 201,884.84

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Solution

The fourth proportional to 770,489.80, 1,155,785.44 and 201,884.84 is: 302,840.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,489.80 : 1,155,785.44 = 201,884.84 : x
  2. Step 2: Convert to fraction form
    770,489.80/1,155,785.44 = 201,884.84/x
  3. Step 3: Cross multiply
    770,489.80x = 1,155,785.44 × 201,884.84
  4. Step 4: Simplify right side
    770,489.80x = 233,335,558,628.73
  5. Step 5: Solve for x
    x = 233,335,558,628.73/770,489.80
  6. Step 6: Final answer
    x = 302,840.55

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