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Finding the Fourth Proportional to 484,335.70, 668,372.84 and 280,395.24

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Solution

The fourth proportional to 484,335.70, 668,372.84 and 280,395.24 is: 386,939.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,335.70 : 668,372.84 = 280,395.24 : x
  2. Step 2: Convert to fraction form
    484,335.70/668,372.84 = 280,395.24/x
  3. Step 3: Cross multiply
    484,335.70x = 668,372.84 × 280,395.24
  4. Step 4: Simplify right side
    484,335.70x = 187,408,562,881.28
  5. Step 5: Solve for x
    x = 187,408,562,881.28/484,335.70
  6. Step 6: Final answer
    x = 386,939.40

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