Finding the Fourth Proportional to 1,186,656.18, 1,637,593.39 and 642,791.97
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Solution
The fourth proportional to 1,186,656.18, 1,637,593.39 and 642,791.97 is: 887,057.18
Step by Step Solution
- Step 1: Write the proportion equation
1,186,656.18 : 1,637,593.39 = 642,791.97 : x - Step 2: Convert to fraction form
1,186,656.18/1,637,593.39 = 642,791.97/x - Step 3: Cross multiply
1,186,656.18x = 1,637,593.39 × 642,791.97 - Step 4: Simplify right side
1,186,656.18x = 1,052,631,881,217.08 - Step 5: Solve for x
x = 1,052,631,881,217.08/1,186,656.18 - Step 6: Final answer
x = 887,057.18
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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.