Finding the Fourth Proportional to 1,272,553.11, 1,756,124.42 and 699,603.03
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Solution
The fourth proportional to 1,272,553.11, 1,756,124.42 and 699,603.03 is: 965,452.80
Step by Step Solution
- Step 1: Write the proportion equation
1,272,553.11 : 1,756,124.42 = 699,603.03 : x - Step 2: Convert to fraction form
1,272,553.11/1,756,124.42 = 699,603.03/x - Step 3: Cross multiply
1,272,553.11x = 1,756,124.42 × 699,603.03 - Step 4: Simplify right side
1,272,553.11x = 1,228,589,961,790.98 - Step 5: Solve for x
x = 1,228,589,961,790.98/1,272,553.11 - Step 6: Final answer
x = 965,452.80
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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.