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Plantation X has 40% as many tea shrubs as plantation Y.
Plantation Y has 85% as many tea shrubs as plantation Z.
If 1134 tea shrubs are removed from plantation Z, the number of tea shrubs that will be left in plantation Z will be `1/2` of the total number of tea shrubs in plantation X and plantation Y.
How many more tea shrubs than plantation X does plantation Z have?