Finding the Fourth Proportional to 1,586,816.48, 2,189,799.81 and 861,658.31
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Solution
The fourth proportional to 1,586,816.48, 2,189,799.81 and 861,658.31 is: 1,189,084.70
Step by Step Solution
- Step 1: Write the proportion equation
1,586,816.48 : 2,189,799.81 = 861,658.31 : x - Step 2: Convert to fraction form
1,586,816.48/2,189,799.81 = 861,658.31/x - Step 3: Cross multiply
1,586,816.48x = 2,189,799.81 × 861,658.31 - Step 4: Simplify right side
1,586,816.48x = 1,886,859,192,573.92 - Step 5: Solve for x
x = 1,886,859,192,573.92/1,586,816.48 - Step 6: Final answer
x = 1,189,084.70
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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.