Finding the Fourth Proportional to 1,291,553.12, 1,937,310.20 and 581,079.44
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Solution
The fourth proportional to 1,291,553.12, 1,937,310.20 and 581,079.44 is: 871,610.40
Step by Step Solution
- Step 1: Write the proportion equation
1,291,553.12 : 1,937,310.20 = 581,079.44 : x - Step 2: Convert to fraction form
1,291,553.12/1,937,310.20 = 581,079.44/x - Step 3: Cross multiply
1,291,553.12x = 1,937,310.20 × 581,079.44 - Step 4: Simplify right side
1,291,553.12x = 1,125,731,126,122.29 - Step 5: Solve for x
x = 1,125,731,126,122.29/1,291,553.12 - Step 6: Final answer
x = 871,610.40
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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.