Finding the Fourth Proportional to 1,278,765.86, 1,764,571.16 and 705,769.09
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Solution
The fourth proportional to 1,278,765.86, 1,764,571.16 and 705,769.09 is: 973,891.96
Step by Step Solution
- Step 1: Write the proportion equation
1,278,765.86 : 1,764,571.16 = 705,769.09 : x - Step 2: Convert to fraction form
1,278,765.86/1,764,571.16 = 705,769.09/x - Step 3: Cross multiply
1,278,765.86x = 1,764,571.16 × 705,769.09 - Step 4: Simplify right side
1,278,765.86x = 1,245,379,779,186.44 - Step 5: Solve for x
x = 1,245,379,779,186.44/1,278,765.86 - Step 6: Final answer
x = 973,891.96
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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.