Finding the Fourth Proportional to 1,188,833.14, 1,640,589.54 and 679,546.45
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Solution
The fourth proportional to 1,188,833.14, 1,640,589.54 and 679,546.45 is: 937,773.99
Step by Step Solution
- Step 1: Write the proportion equation
1,188,833.14 : 1,640,589.54 = 679,546.45 : x - Step 2: Convert to fraction form
1,188,833.14/1,640,589.54 = 679,546.45/x - Step 3: Cross multiply
1,188,833.14x = 1,640,589.54 × 679,546.45 - Step 4: Simplify right side
1,188,833.14x = 1,114,856,797,814.13 - Step 5: Solve for x
x = 1,114,856,797,814.13/1,188,833.14 - Step 6: Final answer
x = 937,773.99
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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.