Finding the Fourth Proportional to 3,899,576.88, 5,381,315.19 and 2,157,201
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Solution
The fourth proportional to 3,899,576.88, 5,381,315.19 and 2,157,201 is: 2,976,881.56
Step by Step Solution
- Step 1: Write the proportion equation
3,899,576.88 : 5,381,315.19 = 2,157,201 : x - Step 2: Convert to fraction form
3,899,576.88/5,381,315.19 = 2,157,201/x - Step 3: Cross multiply
3,899,576.88x = 5,381,315.19 × 2,157,201 - Step 4: Simplify right side
3,899,576.88x = 11,608,578,509,183.19 - Step 5: Solve for x
x = 11,608,578,509,183.19/3,899,576.88 - Step 6: Final answer
x = 2,976,881.56
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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.