Finding the Fourth Proportional to 1,278,406.01, 1,764,189.20 and 697,640.63
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Solution
The fourth proportional to 1,278,406.01, 1,764,189.20 and 697,640.63 is: 962,738.01
Step by Step Solution
- Step 1: Write the proportion equation
1,278,406.01 : 1,764,189.20 = 697,640.63 : x - Step 2: Convert to fraction form
1,278,406.01/1,764,189.20 = 697,640.63/x - Step 3: Cross multiply
1,278,406.01x = 1,764,189.20 × 697,640.63 - Step 4: Simplify right side
1,278,406.01x = 1,230,770,052,618.05 - Step 5: Solve for x
x = 1,230,770,052,618.05/1,278,406.01 - Step 6: Final answer
x = 962,738.01
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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.