Finding the Fourth Proportional to 1,225,435.26, 1,691,071.11 and 681,569.40
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Solution
The fourth proportional to 1,225,435.26, 1,691,071.11 and 681,569.40 is: 940,549.34
Step by Step Solution
- Step 1: Write the proportion equation
1,225,435.26 : 1,691,071.11 = 681,569.40 : x - Step 2: Convert to fraction form
1,225,435.26/1,691,071.11 = 681,569.40/x - Step 3: Cross multiply
1,225,435.26x = 1,691,071.11 × 681,569.40 - Step 4: Simplify right side
1,225,435.26x = 1,152,582,321,800.03 - Step 5: Solve for x
x = 1,152,582,321,800.03/1,225,435.26 - Step 6: Final answer
x = 940,549.34
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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.