Finding the Fourth Proportional to 349,809,861.27, 482,737,791.81 and 191,042,157.75
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Solution
The fourth proportional to 349,809,861.27, 482,737,791.81 and 191,042,157.75 is: 263,638,277.78
Step by Step Solution
- Step 1: Write the proportion equation
349,809,861.27 : 482,737,791.81 = 191,042,157.75 : x - Step 2: Convert to fraction form
349,809,861.27/482,737,791.81 = 191,042,157.75/x - Step 3: Cross multiply
349,809,861.27x = 482,737,791.81 × 191,042,157.75 - Step 4: Simplify right side
349,809,861.27x = 92,223,269,374,852,672 - Step 5: Solve for x
x = 92,223,269,374,852,672/349,809,861.27 - Step 6: Final answer
x = 263,638,277.78
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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.