Finding the Fourth Proportional to 790,616.77, 1,186,146.59 and 317,634.28
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Solution
The fourth proportional to 790,616.77, 1,186,146.59 and 317,634.28 is: 476,540.38
Step by Step Solution
- Step 1: Write the proportion equation
790,616.77 : 1,186,146.59 = 317,634.28 : x - Step 2: Convert to fraction form
790,616.77/1,186,146.59 = 317,634.28/x - Step 3: Cross multiply
790,616.77x = 1,186,146.59 × 317,634.28 - Step 4: Simplify right side
790,616.77x = 376,760,813,535.57 - Step 5: Solve for x
x = 376,760,813,535.57/790,616.77 - Step 6: Final answer
x = 476,540.38
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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.