Finding the Fourth Proportional to 1,586,639.59, 2,189,600.68 and 861,517.87
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Solution
The fourth proportional to 1,586,639.59, 2,189,600.68 and 861,517.87 is: 1,188,915.32
Step by Step Solution
- Step 1: Write the proportion equation
1,586,639.59 : 2,189,600.68 = 861,517.87 : x - Step 2: Convert to fraction form
1,586,639.59/2,189,600.68 = 861,517.87/x - Step 3: Cross multiply
1,586,639.59x = 2,189,600.68 × 861,517.87 - Step 4: Simplify right side
1,586,639.59x = 1,886,380,106,356.36 - Step 5: Solve for x
x = 1,886,380,106,356.36/1,586,639.59 - Step 6: Final answer
x = 1,188,915.32
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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.