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Ah lads if you can't work that one out we're doomed.
If something increases by three-quarters it means it is slightly shorter than 4 football pitches but nearly as deep as an Olympic size swimming pool.
Think Phenolphthalein, how much para-Dimethylaminobenzaldehyde do you put in a FW boiler. About 3/4 or 66% would be fine. Likewise with the haversine of the angle theta between Venus and Rigel. And if suspicious of the answer, double it and tell the crew you put in 110% effort.
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