Finding the Fourth Proportional to 819,737.28, 1,131,236.64 and 457,193.28
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Solution
The fourth proportional to 819,737.28, 1,131,236.64 and 457,193.28 is: 630,926.28
Step by Step Solution
- Step 1: Write the proportion equation
819,737.28 : 1,131,236.64 = 457,193.28 : x - Step 2: Convert to fraction form
819,737.28/1,131,236.64 = 457,193.28/x - Step 3: Cross multiply
819,737.28x = 1,131,236.64 × 457,193.28 - Step 4: Simplify right side
819,737.28x = 517,193,789,897.78 - Step 5: Solve for x
x = 517,193,789,897.78/819,737.28 - Step 6: Final answer
x = 630,926.28
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1.5x scale
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.