Finding the Fourth Proportional to 1,288,193.13, 1,932,663.63 and 519,293.97
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Solution
The fourth proportional to 1,288,193.13, 1,932,663.63 and 519,293.97 is: 779,091.70
Step by Step Solution
- Step 1: Write the proportion equation
1,288,193.13 : 1,932,663.63 = 519,293.97 : x - Step 2: Convert to fraction form
1,288,193.13/1,932,663.63 = 519,293.97/x - Step 3: Cross multiply
1,288,193.13x = 1,932,663.63 × 519,293.97 - Step 4: Simplify right side
1,288,193.13x = 1,003,620,571,044.66 - Step 5: Solve for x
x = 1,003,620,571,044.66/1,288,193.13 - Step 6: Final answer
x = 779,091.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.