Finding the Fourth Proportional to 694,984, 959,071.44 and 393,178
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Solution
The fourth proportional to 694,984, 959,071.44 and 393,178 is: 542,581.97
Step by Step Solution
- Step 1: Write the proportion equation
694,984 : 959,071.44 = 393,178 : x - Step 2: Convert to fraction form
694,984/959,071.44 = 393,178/x - Step 3: Cross multiply
694,984x = 959,071.44 × 393,178 - Step 4: Simplify right side
694,984x = 377,085,790,636.32 - Step 5: Solve for x
x = 377,085,790,636.32/694,984 - Step 6: Final answer
x = 542,581.97
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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.