Finding the Fourth Proportional to 1,287,537.99, 1,776,719.66 and 714,578.55
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Solution
The fourth proportional to 1,287,537.99, 1,776,719.66 and 714,578.55 is: 986,072.46
Step by Step Solution
- Step 1: Write the proportion equation
1,287,537.99 : 1,776,719.66 = 714,578.55 : x - Step 2: Convert to fraction form
1,287,537.99/1,776,719.66 = 714,578.55/x - Step 3: Cross multiply
1,287,537.99x = 1,776,719.66 × 714,578.55 - Step 4: Simplify right side
1,287,537.99x = 1,269,605,754,826.40 - Step 5: Solve for x
x = 1,269,605,754,826.40/1,287,537.99 - Step 6: Final answer
x = 986,072.46
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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.