1. **State the problem:** Pablo shares 525 cupcakes in the ratio 3 : 4 between his bakery and a supermarket. We need to find how many cupcakes the supermarket gets. 2. **Understand the ratio:** The ratio 3 : 4 means for every 3 cupcakes the bakery gets, the supermarket gets 4 cupcakes. 3. **Total parts in the ratio:** Add the parts of the ratio: $3 + 4 = 7$ parts. 4. **Find the value of one part:** Divide the total cupcakes by the total parts: $$\frac{525}{7} = 75$$ 5. **Calculate the supermarket's share:** The supermarket gets 4 parts, so multiply 4 by the value of one part: $$4 \times 75 = 300$$ **Final answer:** The supermarket gets **300** cupcakes.