Finding the Fourth Proportional to 1,868,342.11, 2,578,319.99 and 1,052,555.57
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Solution
The fourth proportional to 1,868,342.11, 2,578,319.99 and 1,052,555.57 is: 1,452,531.12
Step by Step Solution
- Step 1: Write the proportion equation
1,868,342.11 : 2,578,319.99 = 1,052,555.57 : x - Step 2: Convert to fraction form
1,868,342.11/2,578,319.99 = 1,052,555.57/x - Step 3: Cross multiply
1,868,342.11x = 2,578,319.99 × 1,052,555.57 - Step 4: Simplify right side
1,868,342.11x = 2,713,825,066,716.84 - Step 5: Solve for x
x = 2,713,825,066,716.84/1,868,342.11 - Step 6: Final answer
x = 1,452,531.12
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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.