(Reuters) - U.S. private equity company Hellman & Friedman said on Thursday it has matched a rival offer from Swedish private equity firm EQT AB to acquire Zooplus AG, one of Europe’s largest online pet supply retailers, for about 3.36 billion euros ($3.88 billion). Hellman & Friedman’s 470-euros-per-share offer for Zooplus comes after EQT topped an earlier 460-euros-per-share offer by the U.S. firm last month. EQT on Wednesday published its offer document in relation to the deal, which has been welcomed by the management and supervisory boards of Zooplus. ($1 = 0.8655 euros) Reporting by Bhargav Acharya in Bengaluru; Editing by Dan Grebler Our Standards: The Thomson Reuters Trust Principles.