#include <stdio.h>
int main() {
    int test;
    scanf("%d", &test);
    while (test--) {
        int n;
        scanf("%d", &n);
        bool flag = true;
        double max, min, ave;
        scanf("%lf%lf%lf", &max, &min, &ave);
        if (n != 1) {
            if (max < min) flag = false;
            if (max < ave) flag = false;
            if (ave < min) flag = false;
            if (max > ave * n - (n - 1) * min) flag = false;
            if (max < (ave * n - min) / (n - 1))flag = false;
        }
        else {
            if (max != min || min != ave || max != ave) flag = false;
        }
        if (flag) printf("yes\n");
        else printf("no\n");
    }
}