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Finding the Fourth Proportional to 445,478.40, 667,922.40 and 245,894.40

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Solution

The fourth proportional to 445,478.40, 667,922.40 and 245,894.40 is: 368,678.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,478.40 : 667,922.40 = 245,894.40 : x
  2. Step 2: Convert to fraction form
    445,478.40/667,922.40 = 245,894.40/x
  3. Step 3: Cross multiply
    445,478.40x = 667,922.40 × 245,894.40
  4. Step 4: Simplify right side
    445,478.40x = 164,238,377,794.56
  5. Step 5: Solve for x
    x = 164,238,377,794.56/445,478.40
  6. Step 6: Final answer
    x = 368,678.66

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