A surveyor measured the distance between two points on the plan drawn to a scale of $1 \mathrm{~cm}=40 \mathrm{~m}$ and the result was $468 \: \mathrm{m}$. Later, it was discovered that the scale used was $1 \mathrm{~cm}=20 \mathrm{~m}$.
The true distance between the points (in $\mathrm{m}$ ) is $\_\_\_\_\_\_\_\_\_\_\_$. (round off to the nearest integer).
