Finding the Fourth Proportional to 923,715.19, 1,274,702.16 and 515,805.67
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Solution
The fourth proportional to 923,715.19, 1,274,702.16 and 515,805.67 is: 711,797.97
Step by Step Solution
- Step 1: Write the proportion equation
923,715.19 : 1,274,702.16 = 515,805.67 : x - Step 2: Convert to fraction form
923,715.19/1,274,702.16 = 515,805.67/x - Step 3: Cross multiply
923,715.19x = 1,274,702.16 × 515,805.67 - Step 4: Simplify right side
923,715.19x = 657,498,601,689.25 - Step 5: Solve for x
x = 657,498,601,689.25/923,715.19 - Step 6: Final answer
x = 711,797.97
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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.