Finding the Third Proportional to 720,664 and 1,115,960
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Solution
The third proportional to 720,664 and 1,115,960 is: 1,728,082.33
Step by Step Solution
- Step 1: Write the proportion equation
720,664 : 1,115,960 = 1,115,960 : x - Step 2: Convert to fraction form
720,664/1,115,960 = 1,115,960/x - Step 3: Cross multiply
720,664x = 1,115,960 × 1,115,960 - Step 4: Simplify right side
720,664x = 1,245,366,721,600 - Step 5: Solve for x
x = 1,245,366,721,600/720,664 - Step 6: Final answer
x = 1,728,082.33
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Why These Related Problems?
These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.