Finding the Fourth Proportional to 1,586,696.15, 2,189,580.90 and 861,528.19
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Solution
The fourth proportional to 1,586,696.15, 2,189,580.90 and 861,528.19 is: 1,188,876.44
Step by Step Solution
- Step 1: Write the proportion equation
1,586,696.15 : 2,189,580.90 = 861,528.19 : x - Step 2: Convert to fraction form
1,586,696.15/2,189,580.90 = 861,528.19/x - Step 3: Cross multiply
1,586,696.15x = 2,189,580.90 × 861,528.19 - Step 4: Simplify right side
1,586,696.15x = 1,886,385,669,635.57 - Step 5: Solve for x
x = 1,886,385,669,635.57/1,586,696.15 - Step 6: Final answer
x = 1,188,876.44
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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.