The number of seats later became redistributed automatically by

The number of seats later became redistributed automatically by the Reapportionment Act of 1929.

Explanation:

The Reapportionment Act of 1929 established the distribution of seats in the House of Representatives based on a dynamic proportional criterion. That is, it established that each electoral district will receive a certain number of representatives by virtue of its population and its proportion with respect to the national total. Therefore, if a district loses electoral weight by reducing its total population percentage with respect to the total national population, its number of seats in the House will decrease.

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