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Finding the Fourth Proportional to 647,844.36, 971,953.29 and 198,631.53

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Solution

The fourth proportional to 647,844.36, 971,953.29 and 198,631.53 is: 298,004.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,844.36 : 971,953.29 = 198,631.53 : x
  2. Step 2: Convert to fraction form
    647,844.36/971,953.29 = 198,631.53/x
  3. Step 3: Cross multiply
    647,844.36x = 971,953.29 × 198,631.53
  4. Step 4: Simplify right side
    647,844.36x = 193,060,569,081.23
  5. Step 5: Solve for x
    x = 193,060,569,081.23/647,844.36
  6. Step 6: Final answer
    x = 298,004.55

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