Make 4 icons match

Take the 4 icons attached, and create 4 vector drawing output files that all match. There are small design/style differences between these icons. The output files should all have the same style, the same black color (that can then be changed if desired), and the same aspect ratio. For aspect ratio, they don't necessarily need to be square, but the outer maximum dimensions of the height and width of each should be the same for all 4.