Finding the Fourth Proportional to 1,243,415.61, 1,715,791.41 and 699,539.70
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Solution
The fourth proportional to 1,243,415.61, 1,715,791.41 and 699,539.70 is: 965,296.08
Step by Step Solution
- Step 1: Write the proportion equation
1,243,415.61 : 1,715,791.41 = 699,539.70 : x - Step 2: Convert to fraction form
1,243,415.61/1,715,791.41 = 699,539.70/x - Step 3: Cross multiply
1,243,415.61x = 1,715,791.41 × 699,539.70 - Step 4: Simplify right side
1,243,415.61x = 1,200,264,208,213.98 - Step 5: Solve for x
x = 1,200,264,208,213.98/1,243,415.61 - Step 6: Final answer
x = 965,296.08
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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.