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Finding the Fourth Proportional to 448,936.40, 674,182.20 and 238,984.40

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Solution

The fourth proportional to 448,936.40, 674,182.20 and 238,984.40 is: 358,890.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,936.40 : 674,182.20 = 238,984.40 : x
  2. Step 2: Convert to fraction form
    448,936.40/674,182.20 = 238,984.40/x
  3. Step 3: Cross multiply
    448,936.40x = 674,182.20 × 238,984.40
  4. Step 4: Simplify right side
    448,936.40x = 161,119,028,557.68
  5. Step 5: Solve for x
    x = 161,119,028,557.68/448,936.40
  6. Step 6: Final answer
    x = 358,890.54

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