Finding the Fourth Proportional to 1,853,364.57, 2,557,949.12 and 1,272,110.19
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Solution
The fourth proportional to 1,853,364.57, 2,557,949.12 and 1,272,110.19 is: 1,755,722.10
Step by Step Solution
- Step 1: Write the proportion equation
1,853,364.57 : 2,557,949.12 = 1,272,110.19 : x - Step 2: Convert to fraction form
1,853,364.57/2,557,949.12 = 1,272,110.19/x - Step 3: Cross multiply
1,853,364.57x = 2,557,949.12 × 1,272,110.19 - Step 4: Simplify right side
1,853,364.57x = 3,253,993,129,871.09 - Step 5: Solve for x
x = 3,253,993,129,871.09/1,853,364.57 - Step 6: Final answer
x = 1,755,722.10
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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.