Finding the Fourth Proportional to 1,187,122.62, 1,638,797.19 and 677,726.46
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Solution
The fourth proportional to 1,187,122.62, 1,638,797.19 and 677,726.46 is: 935,586.77
Step by Step Solution
- Step 1: Write the proportion equation
1,187,122.62 : 1,638,797.19 = 677,726.46 : x - Step 2: Convert to fraction form
1,187,122.62/1,638,797.19 = 677,726.46/x - Step 3: Cross multiply
1,187,122.62x = 1,638,797.19 × 677,726.46 - Step 4: Simplify right side
1,187,122.62x = 1,110,656,218,236.65 - Step 5: Solve for x
x = 1,110,656,218,236.65/1,187,122.62 - Step 6: Final answer
x = 935,586.77
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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.