Finding the Fourth Proportional to 1,586,644.96, 2,189,608.10 and 861,523.24
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Solution
The fourth proportional to 1,586,644.96, 2,189,608.10 and 861,523.24 is: 1,188,922.73
Step by Step Solution
- Step 1: Write the proportion equation
1,586,644.96 : 2,189,608.10 = 861,523.24 : x - Step 2: Convert to fraction form
1,586,644.96/2,189,608.10 = 861,523.24/x - Step 3: Cross multiply
1,586,644.96x = 2,189,608.10 × 861,523.24 - Step 4: Simplify right side
1,586,644.96x = 1,886,398,264,642.24 - Step 5: Solve for x
x = 1,886,398,264,642.24/1,586,644.96 - Step 6: Final answer
x = 1,188,922.73
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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.