Finding the Fourth Proportional to 1,106,686.09, 1,527,229.97 and 641,630.35
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Solution
The fourth proportional to 1,106,686.09, 1,527,229.97 and 641,630.35 is: 885,451.72
Step by Step Solution
- Step 1: Write the proportion equation
1,106,686.09 : 1,527,229.97 = 641,630.35 : x - Step 2: Convert to fraction form
1,106,686.09/1,527,229.97 = 641,630.35/x - Step 3: Cross multiply
1,106,686.09x = 1,527,229.97 × 641,630.35 - Step 4: Simplify right side
1,106,686.09x = 979,917,100,181.59 - Step 5: Solve for x
x = 979,917,100,181.59/1,106,686.09 - Step 6: Final answer
x = 885,451.72
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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.