This is the 9603rd most frequent Spanish word.
aproximada
Approximate.
Here, "aproximada" is used as an adjective to describe the noun "duración," indicating that the duration of the journey is not exact but estimated.
La duración aproximada del trayecto es de dos horas.
The approximate duration of the journey is two hours.
In this context, "aproximada" modifies the noun "línea," expressing that the line is roughly similar or close to the contour curve in shape or position.
Dibujó una línea aproximada a la curva de nivel.
She drew a line approximate to the contour curve.
Here, "aproximada" is used to describe "cantidad," suggesting that the number given is an estimate rather than an exact count.