Finding the Fourth Proportional to 1,586,814.98, 2,189,797.74 and 861,656.81
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Solution
The fourth proportional to 1,586,814.98, 2,189,797.74 and 861,656.81 is: 1,189,082.63
Step by Step Solution
- Step 1: Write the proportion equation
1,586,814.98 : 2,189,797.74 = 861,656.81 : x - Step 2: Convert to fraction form
1,586,814.98/2,189,797.74 = 861,656.81/x - Step 3: Cross multiply
1,586,814.98x = 2,189,797.74 × 861,656.81 - Step 4: Simplify right side
1,586,814.98x = 1,886,854,124,244.62 - Step 5: Solve for x
x = 1,886,854,124,244.62/1,586,814.98 - Step 6: Final answer
x = 1,189,082.63
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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.