Finding the Fourth Proportional to 1,143,539.68, 1,578,087.19 and 627,297.81
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Solution
The fourth proportional to 1,143,539.68, 1,578,087.19 and 627,297.81 is: 865,672.32
Step by Step Solution
- Step 1: Write the proportion equation
1,143,539.68 : 1,578,087.19 = 627,297.81 : x - Step 2: Convert to fraction form
1,143,539.68/1,578,087.19 = 627,297.81/x - Step 3: Cross multiply
1,143,539.68x = 1,578,087.19 × 627,297.81 - Step 4: Simplify right side
1,143,539.68x = 989,930,640,604.89 - Step 5: Solve for x
x = 989,930,640,604.89/1,143,539.68 - Step 6: Final answer
x = 865,672.32
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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.