| XXV × XXXVIII |
| XXV x XXVI |
| XIII quadrupled |
| Winning Super Bowl XXXVII gridder |
| CCCXXVI doubled |
| XXVI Olympiad site |
| XXXVIII x V |
| XXVI quadrupled |
| XXXVIII x VIII |
| XXVI doubled |
| Super Bowl XXXVIII halftime entertainer |
| Twice LXXVI |
| LXXVI doubled |
| XIV quadrupled |
| XXXV x XXVI |
| CCLI quadrupled |
| Zwei quadrupled |
| CCLXIII quadrupled |
| Year of Super Bowl XXXVIII |
| CCXXV + CCCXXVII |
| LI quadrupled |
| Its population nearly quadrupled in the 20th century |
| Chapter XXVIII of "Moby-Dick |
| Partly quadrupled, a 1963 comedy |
| CCCXXXVII tripled |
| IV x CCCLXXXVIII |
| DX quadrupled |
| CCXC quadrupled |
| XXXVIII x XXV |
| XXVII ÷ IX |