Finding the Fourth Proportional to 1,149,519.43, 1,586,386.11 and 640,221.94
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Solution
The fourth proportional to 1,149,519.43, 1,586,386.11 and 640,221.94 is: 883,533.73
Step by Step Solution
- Step 1: Write the proportion equation
1,149,519.43 : 1,586,386.11 = 640,221.94 : x - Step 2: Convert to fraction form
1,149,519.43/1,586,386.11 = 640,221.94/x - Step 3: Cross multiply
1,149,519.43x = 1,586,386.11 × 640,221.94 - Step 4: Simplify right side
1,149,519.43x = 1,015,639,192,933.25 - Step 5: Solve for x
x = 1,015,639,192,933.25/1,149,519.43 - Step 6: Final answer
x = 883,533.73
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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.