Finding the Fourth Proportional to 1,198,957.92, 1,652,640.16 and 811,651.20
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Solution
The fourth proportional to 1,198,957.92, 1,652,640.16 and 811,651.20 is: 1,118,777.69
Step by Step Solution
- Step 1: Write the proportion equation
1,198,957.92 : 1,652,640.16 = 811,651.20 : x - Step 2: Convert to fraction form
1,198,957.92/1,652,640.16 = 811,651.20/x - Step 3: Cross multiply
1,198,957.92x = 1,652,640.16 × 811,651.20 - Step 4: Simplify right side
1,198,957.92x = 1,341,367,369,032.19 - Step 5: Solve for x
x = 1,341,367,369,032.19/1,198,957.92 - Step 6: Final answer
x = 1,118,777.69
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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.