Finding the Fourth Proportional to 792, 1,092.96 and 481.50
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Solution
The fourth proportional to 792, 1,092.96 and 481.50 is: 664.47
Step by Step Solution
- Step 1: Write the proportion equation
792 : 1,092.96 = 481.50 : x - Step 2: Convert to fraction form
792/1,092.96 = 481.50/x - Step 3: Cross multiply
792x = 1,092.96 × 481.50 - Step 4: Simplify right side
792x = 526,260.24 - Step 5: Solve for x
x = 526,260.24/792 - Step 6: Final answer
x = 664.47
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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.