Four Fours/Lemmata/Three Fours/50

Puzzle

Using exactly $3$ instances of the number $4$, the task is to write an expression for $50$, using whatever arithmetical operations you consider necessary.

Solutions

Solution $1$

$50 = \dfrac {4!} {. \dot 4} - 4$

Solution $2$

$50 = \dfrac {4! - 4} {.4}$

Also see

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