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Finding the Fourth Proportional to 451,688.39, 676,492.38 and 261,677.05

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Solution

The fourth proportional to 451,688.39, 676,492.38 and 261,677.05 is: 391,912.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,688.39 : 676,492.38 = 261,677.05 : x
  2. Step 2: Convert to fraction form
    451,688.39/676,492.38 = 261,677.05/x
  3. Step 3: Cross multiply
    451,688.39x = 676,492.38 × 261,677.05
  4. Step 4: Simplify right side
    451,688.39x = 177,022,528,654.65
  5. Step 5: Solve for x
    x = 177,022,528,654.65/451,688.39
  6. Step 6: Final answer
    x = 391,912.95

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