Two people, A and B, set off from A and B at the same time and walk towards each other, and they meet at point C after 9 hours. If A's speed remains the same, B travels 4 kilometers more per hour, and A and B start from A and B at the same time and go towards each other, then the meeting point D is 14 kilometers away from point C; if B's speed remains unchanged, A 4 kilometers per hour, then the meeting point E is 18.25 kilometers away from point C. Find the distance between A and B.
甲、乙二人分别从A、B两地同时出发相向而行，9小时后相遇在C点．如果甲速度不变，乙每小时多行4千米，且甲、乙还从A、B两地同时出发相向而行，则相遇点D距C点14千米；如果乙速度不变，甲每小时多行4千米，则相遇点E距C点18.25千米．求甲、乙两地距离．
<result>309.6</result>