Math Problem Solver

Original numbers in ascending order: $197487$, $304976$, $498089$, $649119$
Sum: $1649671$
Mean: $\frac{1649671}{4} = 412417.75$
Sample standard deviation: $\frac{13 \sqrt{8599242729}}{6} \approx 200919.5542$
Median: $\frac{803065}{2} = 401532.5$
Mode: No mode