Finding the Fourth Proportional to 1,247,865.84, 1,722,330 and 811,524.24
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Solution
The fourth proportional to 1,247,865.84, 1,722,330 and 811,524.24 is: 1,120,082.38
Step by Step Solution
- Step 1: Write the proportion equation
1,247,865.84 : 1,722,330 = 811,524.24 : x - Step 2: Convert to fraction form
1,247,865.84/1,722,330 = 811,524.24/x - Step 3: Cross multiply
1,247,865.84x = 1,722,330 × 811,524.24 - Step 4: Simplify right side
1,247,865.84x = 1,397,712,544,279.20 - Step 5: Solve for x
x = 1,397,712,544,279.20/1,247,865.84 - Step 6: Final answer
x = 1,120,082.38
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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.