Finding the Fourth Proportional to 1,115,120.88, 1,538,874.18 and 605,823.12
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Solution
The fourth proportional to 1,115,120.88, 1,538,874.18 and 605,823.12 is: 836,039.91
Step by Step Solution
- Step 1: Write the proportion equation
1,115,120.88 : 1,538,874.18 = 605,823.12 : x - Step 2: Convert to fraction form
1,115,120.88/1,538,874.18 = 605,823.12/x - Step 3: Cross multiply
1,115,120.88x = 1,538,874.18 × 605,823.12 - Step 4: Simplify right side
1,115,120.88x = 932,285,557,015.04 - Step 5: Solve for x
x = 932,285,557,015.04/1,115,120.88 - Step 6: Final answer
x = 836,039.91
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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.