Finding the Fourth Proportional to 1,259,184.18, 1,737,623.46 and 686,212.05
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Solution
The fourth proportional to 1,259,184.18, 1,737,623.46 and 686,212.05 is: 946,944.99
Step by Step Solution
- Step 1: Write the proportion equation
1,259,184.18 : 1,737,623.46 = 686,212.05 : x - Step 2: Convert to fraction form
1,259,184.18/1,737,623.46 = 686,212.05/x - Step 3: Cross multiply
1,259,184.18x = 1,737,623.46 × 686,212.05 - Step 4: Simplify right side
1,259,184.18x = 1,192,378,156,614.69 - Step 5: Solve for x
x = 1,192,378,156,614.69/1,259,184.18 - Step 6: Final answer
x = 946,944.99
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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.