Finding the Fourth Proportional to 1,189,393.08, 1,783,586.61 and 479,230.44
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Solution
The fourth proportional to 1,189,393.08, 1,783,586.61 and 479,230.44 is: 718,642.99
Step by Step Solution
- Step 1: Write the proportion equation
1,189,393.08 : 1,783,586.61 = 479,230.44 : x - Step 2: Convert to fraction form
1,189,393.08/1,783,586.61 = 479,230.44/x - Step 3: Cross multiply
1,189,393.08x = 1,783,586.61 × 479,230.44 - Step 4: Simplify right side
1,189,393.08x = 854,748,995,888.41 - Step 5: Solve for x
x = 854,748,995,888.41/1,189,393.08 - Step 6: Final answer
x = 718,642.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.