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Finding the Fourth Proportional to 563,991.24, 778,304.61 and 305,865.61

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Solution

The fourth proportional to 563,991.24, 778,304.61 and 305,865.61 is: 422,092.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,991.24 : 778,304.61 = 305,865.61 : x
  2. Step 2: Convert to fraction form
    563,991.24/778,304.61 = 305,865.61/x
  3. Step 3: Cross multiply
    563,991.24x = 778,304.61 × 305,865.61
  4. Step 4: Simplify right side
    563,991.24x = 238,056,615,484.56
  5. Step 5: Solve for x
    x = 238,056,615,484.56/563,991.24
  6. Step 6: Final answer
    x = 422,092.75

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