import type { DilutionInput, DilutionResult } from './types.js';
/**
 * Calculate dilution using C1V1 = C2V2 equation.
 *
 * Solves for the specified unknown variable while the other three are provided.
 *
 * @param input - Dilution input with three known values and one to solve for
 * @returns Dilution result with all values and solvent to add
 * @throws Error if division by zero would occur
 */
export declare function dilution(input: DilutionInput): DilutionResult;
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