Finding the Fourth Proportional to 714,660.11, 986,232.89 and 392,391.08
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Solution
The fourth proportional to 714,660.11, 986,232.89 and 392,391.08 is: 541,500.76
Step by Step Solution
- Step 1: Write the proportion equation
714,660.11 : 986,232.89 = 392,391.08 : x - Step 2: Convert to fraction form
714,660.11/986,232.89 = 392,391.08/x - Step 3: Cross multiply
714,660.11x = 986,232.89 × 392,391.08 - Step 4: Simplify right side
714,660.11x = 386,988,993,030.77 - Step 5: Solve for x
x = 386,988,993,030.77/714,660.11 - Step 6: Final answer
x = 541,500.76
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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.