Finding the Fourth Proportional to 1,278,234.08, 1,917,351.12 and 436,793.12
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Solution
The fourth proportional to 1,278,234.08, 1,917,351.12 and 436,793.12 is: 655,189.68
Step by Step Solution
- Step 1: Write the proportion equation
1,278,234.08 : 1,917,351.12 = 436,793.12 : x - Step 2: Convert to fraction form
1,278,234.08/1,917,351.12 = 436,793.12/x - Step 3: Cross multiply
1,278,234.08x = 1,917,351.12 × 436,793.12 - Step 4: Simplify right side
1,278,234.08x = 837,485,777,840.29 - Step 5: Solve for x
x = 837,485,777,840.29/1,278,234.08 - Step 6: Final answer
x = 655,189.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.