Finding the Fourth Proportional to 2,161,207.49, 2,982,212.57 and 1,194,280.16
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Solution
The fourth proportional to 2,161,207.49, 2,982,212.57 and 1,194,280.16 is: 1,647,966.39
Step by Step Solution
- Step 1: Write the proportion equation
2,161,207.49 : 2,982,212.57 = 1,194,280.16 : x - Step 2: Convert to fraction form
2,161,207.49/2,982,212.57 = 1,194,280.16/x - Step 3: Cross multiply
2,161,207.49x = 2,982,212.57 × 1,194,280.16 - Step 4: Simplify right side
2,161,207.49x = 3,561,597,293,328.25 - Step 5: Solve for x
x = 3,561,597,293,328.25/2,161,207.49 - Step 6: Final answer
x = 1,647,966.39
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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.