Finding the Fourth Proportional to 2,133,599.17, 2,944,215.66 and 1,215,799.12
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Solution
The fourth proportional to 2,133,599.17, 2,944,215.66 and 1,215,799.12 is: 1,677,716.63
Step by Step Solution
- Step 1: Write the proportion equation
2,133,599.17 : 2,944,215.66 = 1,215,799.12 : x - Step 2: Convert to fraction form
2,133,599.17/2,944,215.66 = 1,215,799.12/x - Step 3: Cross multiply
2,133,599.17x = 2,944,215.66 × 1,215,799.12 - Step 4: Simplify right side
2,133,599.17x = 3,579,574,808,518.22 - Step 5: Solve for x
x = 3,579,574,808,518.22/2,133,599.17 - Step 6: Final answer
x = 1,677,716.63
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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.