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Finding the Fourth Proportional to 978,424.80, 1,467,637.20 and 978,424.80

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Solution

The fourth proportional to 978,424.80, 1,467,637.20 and 978,424.80 is: 1,467,637.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,424.80 : 1,467,637.20 = 978,424.80 : x
  2. Step 2: Convert to fraction form
    978,424.80/1,467,637.20 = 978,424.80/x
  3. Step 3: Cross multiply
    978,424.80x = 1,467,637.20 × 978,424.80
  4. Step 4: Simplify right side
    978,424.80x = 1,435,972,633,882.56
  5. Step 5: Solve for x
    x = 1,435,972,633,882.56/978,424.80
  6. Step 6: Final answer
    x = 1,467,637.20

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