Unless otherwise provided by law, in the event of a tie vote of the district school board chair and district school board members acting in any capacity, the side on which the district school board chair voted shall be deemed to prevail. For purposes of any vote of the district school board chair and district school board members acting in any capacity, action taken pursuant to that side of a tie vote on which the district school board chair voted satisfies the requirement that action be taken by a “majority” vote or a “simple majority” vote. This section applies only to those counties organized by charter that have a population of between 800,000 and 900,000 according to the last federal decennial census.