Finding the Fourth Proportional to 1,259,185.68, 1,737,625.53 and 686,213.55
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Solution
The fourth proportional to 1,259,185.68, 1,737,625.53 and 686,213.55 is: 946,947.06
Step by Step Solution
- Step 1: Write the proportion equation
1,259,185.68 : 1,737,625.53 = 686,213.55 : x - Step 2: Convert to fraction form
1,259,185.68/1,737,625.53 = 686,213.55/x - Step 3: Cross multiply
1,259,185.68x = 1,737,625.53 × 686,213.55 - Step 4: Simplify right side
1,259,185.68x = 1,192,382,183,511.93 - Step 5: Solve for x
x = 1,192,382,183,511.93/1,259,185.68 - Step 6: Final answer
x = 946,947.06
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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.