Finding the Fourth Proportional to 505,660.70, 697,814.18 and 276,221.17
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Solution
The fourth proportional to 505,660.70, 697,814.18 and 276,221.17 is: 381,186.53
Step by Step Solution
- Step 1: Write the proportion equation
505,660.70 : 697,814.18 = 276,221.17 : x - Step 2: Convert to fraction form
505,660.70/697,814.18 = 276,221.17/x - Step 3: Cross multiply
505,660.70x = 697,814.18 × 276,221.17 - Step 4: Simplify right side
505,660.70x = 192,751,049,769.18 - Step 5: Solve for x
x = 192,751,049,769.18/505,660.70 - Step 6: Final answer
x = 381,186.53
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1.5x scale
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.