Finding the Fourth Proportional to 505,761.11, 697,964.42 and 279,421.19
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Solution
The fourth proportional to 505,761.11, 697,964.42 and 279,421.19 is: 385,609.03
Step by Step Solution
- Step 1: Write the proportion equation
505,761.11 : 697,964.42 = 279,421.19 : x - Step 2: Convert to fraction form
505,761.11/697,964.42 = 279,421.19/x - Step 3: Cross multiply
505,761.11x = 697,964.42 × 279,421.19 - Step 4: Simplify right side
505,761.11x = 195,026,048,814.06 - Step 5: Solve for x
x = 195,026,048,814.06/505,761.11 - Step 6: Final answer
x = 385,609.03
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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.