Finding the Fourth Proportional to 1,616,168.79, 2,230,245.63 and 881,107.11
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Solution
The fourth proportional to 1,616,168.79, 2,230,245.63 and 881,107.11 is: 1,215,891.12
Step by Step Solution
- Step 1: Write the proportion equation
1,616,168.79 : 2,230,245.63 = 881,107.11 : x - Step 2: Convert to fraction form
1,616,168.79/2,230,245.63 = 881,107.11/x - Step 3: Cross multiply
1,616,168.79x = 2,230,245.63 × 881,107.11 - Step 4: Simplify right side
1,616,168.79x = 1,965,085,281,639.43 - Step 5: Solve for x
x = 1,965,085,281,639.43/1,616,168.79 - Step 6: Final answer
x = 1,215,891.12
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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.