Finding the Fourth Proportional to 774,161,059.20, 1,161,341,121.60 and 386,182,204.80
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Solution
The fourth proportional to 774,161,059.20, 1,161,341,121.60 and 386,182,204.80 is: 579,322,958.10
Step by Step Solution
- Step 1: Write the proportion equation
774,161,059.20 : 1,161,341,121.60 = 386,182,204.80 : x - Step 2: Convert to fraction form
774,161,059.20/1,161,341,121.60 = 386,182,204.80/x - Step 3: Cross multiply
774,161,059.20x = 1,161,341,121.60 × 386,182,204.80 - Step 4: Simplify right side
774,161,059.20x = 448,489,274,864,392,896 - Step 5: Solve for x
x = 448,489,274,864,392,896/774,161,059.20 - Step 6: Final answer
x = 579,322,958.10
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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.