Finding the Fourth Proportional to 1,586,917.44, 2,189,939.22 and 861,759.18
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Solution
The fourth proportional to 1,586,917.44, 2,189,939.22 and 861,759.18 is: 1,189,223.95
Step by Step Solution
- Step 1: Write the proportion equation
1,586,917.44 : 2,189,939.22 = 861,759.18 : x - Step 2: Convert to fraction form
1,586,917.44/2,189,939.22 = 861,759.18/x - Step 3: Cross multiply
1,586,917.44x = 2,189,939.22 × 861,759.18 - Step 4: Simplify right side
1,586,917.44x = 1,887,200,226,477.04 - Step 5: Solve for x
x = 1,887,200,226,477.04/1,586,917.44 - Step 6: Final answer
x = 1,189,223.95
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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.