Finding the Fourth Proportional to 1,115,136.06, 1,538,857.80 and 656,277.63
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Solution
The fourth proportional to 1,115,136.06, 1,538,857.80 and 656,277.63 is: 905,645.50
Step by Step Solution
- Step 1: Write the proportion equation
1,115,136.06 : 1,538,857.80 = 656,277.63 : x - Step 2: Convert to fraction form
1,115,136.06/1,538,857.80 = 656,277.63/x - Step 3: Cross multiply
1,115,136.06x = 1,538,857.80 × 656,277.63 - Step 4: Simplify right side
1,115,136.06x = 1,009,917,949,891.01 - Step 5: Solve for x
x = 1,009,917,949,891.01/1,115,136.06 - Step 6: Final answer
x = 905,645.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.