Finding the Fourth Proportional to 1,136,686.20, 1,568,623.98 and 627,385.08
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Solution
The fourth proportional to 1,136,686.20, 1,568,623.98 and 627,385.08 is: 865,789.77
Step by Step Solution
- Step 1: Write the proportion equation
1,136,686.20 : 1,568,623.98 = 627,385.08 : x - Step 2: Convert to fraction form
1,136,686.20/1,568,623.98 = 627,385.08/x - Step 3: Cross multiply
1,136,686.20x = 1,568,623.98 × 627,385.08 - Step 4: Simplify right side
1,136,686.20x = 984,131,281,182.22 - Step 5: Solve for x
x = 984,131,281,182.22/1,136,686.20 - Step 6: Final answer
x = 865,789.77
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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.