I think that I have found my problem with resizing this partition.
I booted the system to Parted Magic and checked the size of the partition - it was what I had set it to, but the "new" area was a grey color. Ran check on that partition when it completed the unused area was now white indicating unused space. Rebooted and checked with df -h it now reports the correct size. Not sure what Parted Magic check function did but that seems to have resolved the problem. Now I am able to install the software I wanted but was unable to before because I did not have enough disk space even though I had increased the size.
One final note this is an older desktop system that we are converting to Ubermix.