Finding the Fourth Proportional to 1,586,856.66, 2,189,854.26 and 861,697.92
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Solution
The fourth proportional to 1,586,856.66, 2,189,854.26 and 861,697.92 is: 1,189,138.82
Step by Step Solution
- Step 1: Write the proportion equation
1,586,856.66 : 2,189,854.26 = 861,697.92 : x - Step 2: Convert to fraction form
1,586,856.66/2,189,854.26 = 861,697.92/x - Step 3: Cross multiply
1,586,856.66x = 2,189,854.26 × 861,697.92 - Step 4: Simplify right side
1,586,856.66x = 1,886,992,860,945.14 - Step 5: Solve for x
x = 1,886,992,860,945.14/1,586,856.66 - Step 6: Final answer
x = 1,189,138.82
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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.