A 6-inch tall flower casts a 4-inch shadow at 5:00pm. One month later, when the sun was at the same position in the sky as it was at 5:00pm one month earlier, the shadow cast was 5 1/3 inches long. How many inches taller was the flower when it cast the 5 1/3-inch shadow than it was when it cast the 4-inch shadow?
