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Finding the Fourth Proportional to 623,208.28, 934,515.96 and 323,388.40

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Solution

The fourth proportional to 623,208.28, 934,515.96 and 323,388.40 is: 484,928.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,208.28 : 934,515.96 = 323,388.40 : x
  2. Step 2: Convert to fraction form
    623,208.28/934,515.96 = 323,388.40/x
  3. Step 3: Cross multiply
    623,208.28x = 934,515.96 × 323,388.40
  4. Step 4: Simplify right side
    623,208.28x = 302,211,621,078.86
  5. Step 5: Solve for x
    x = 302,211,621,078.86/623,208.28
  6. Step 6: Final answer
    x = 484,928.76

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