ChatGPT says: "If you travel from Washington D.C. to Boston and then continue in the same direction for the same distance, you would arrive at a point with the approximate coordinates of 45.80°N latitude and 64.73°W longitude. This location is in the Atlantic Ocean, southeast of New Brunswick and Nova Scotia, Canada."
Quebec is a pretty big province (with almost the whole population in the south part anyway) but also a city. I guess an American can easily picture the location of Montreal 45.5°N (30 miles north of New York/Vermont) or Quebec City 46.8°N (70 miles east of north Maine). Both are quite south of London (51.5°N) or Paris (48.9°N). (For reference, most of the US-Canadian border runs along the 49°N parallel.)