Is it possible to force the Regular Price into Variable price fields ?

I have around 4,500 products and a total of about 75,000 variations being Colour and Size.
95% of the variations are the same prices as the Regular Price of the products, so to save a lot of time I was hoping there was a way using Woocommerce, or even a Plugin, that would enable me to just push the regular price of an item into all the variations for that item.

And of course to be able to do this on mass, not just one product at a time.

Would much appreciate any suggestions on this.
thanks