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138 LOGARITHMS.
(260) (a) Apply rule, Art. 662.
Log 755.4 = 2.87818
log .00324=^ 3.51055
difference = 5. 36763 = logarithm of quotient.
The mantissa is not found in the table. The next less
mantissa is 36754. The difference between this and the
next greater mantissa is 773 — 754 = 19, and the P. P. is
763 — 754 = 9. Looking
in the P. P. section for the column
headed 19, we find opposite 9.5, 5, the fifth figure of the
number. The fourth figure is 1, and the first three figures
233; hence, the figures of the number are 23315. Since the
characteristic is 5, 755.4 ^ .00324 = 233,150. Ans.
(d) Apply rule.
Log
Art. 652.
.05555 =¥.74468
log .0008601 = 4.93455
difference = 1.81013 = logarithm of quotient.
The number whose logarithm is 1.81013 equals 64.584.
Hence, .05555 -4- .0008601 = 64.584. Ans.
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