Range increment multipliers

[Orm]

How do range increment multipliers stack? Does an archer with Far Shot using a longbow of distance have a range increment of 100ft(longbow) x1.5(far shot) x2(distance)=300ft? Or works it like threat range multipliers, i.e. threat range x2(keen) x2(improved crit)=threat range x3? In this case would the range increment be 100ft +0.5x100ft +1x100ft=250ft?

Thanks in advance
Orm

 

[Crothian]

It's the second one, they always multiple the base distance, so the range would be 250ft.

 

[Orm]

Thanks for the quick reply, Crothian.

Orm