The minor planet $(33340)1998$ VG$44$VG$44$ makes exactly two orbits of the sun during the time that Neptune makes three orbits. The eccentricity of the orbit of this minor planet is $0\mathrm{.}25,$ and the orbit radius of Neptune is $4\mathrm{.}51012$m$4\mathrm{.}51012$m$.$ Find the semi$-$major axis of this minor planet.

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aa $=$

$6\mathrm{.}481012$