Finding the Fourth Proportional to 5,239,116.46, 7,229,081.13 and 4,815,321.99
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Solution
The fourth proportional to 5,239,116.46, 7,229,081.13 and 4,815,321.99 is: 6,644,317.53
Step by Step Solution
- Step 1: Write the proportion equation
5,239,116.46 : 7,229,081.13 = 4,815,321.99 : x - Step 2: Convert to fraction form
5,239,116.46/7,229,081.13 = 4,815,321.99/x - Step 3: Cross multiply
5,239,116.46x = 7,229,081.13 × 4,815,321.99 - Step 4: Simplify right side
5,239,116.46x = 34,810,353,332,783.05 - Step 5: Solve for x
x = 34,810,353,332,783.05/5,239,116.46 - Step 6: Final answer
x = 6,644,317.53
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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.