Finding the Fourth Proportional to 2,126,048.13, 2,933,861.85 and 1,255,163.40
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Solution
The fourth proportional to 2,126,048.13, 2,933,861.85 and 1,255,163.40 is: 1,732,075.56
Step by Step Solution
- Step 1: Write the proportion equation
2,126,048.13 : 2,933,861.85 = 1,255,163.40 : x - Step 2: Convert to fraction form
2,126,048.13/2,933,861.85 = 1,255,163.40/x - Step 3: Cross multiply
2,126,048.13x = 2,933,861.85 × 1,255,163.40 - Step 4: Simplify right side
2,126,048.13x = 3,682,476,014,776.29 - Step 5: Solve for x
x = 3,682,476,014,776.29/2,126,048.13 - Step 6: Final answer
x = 1,732,075.56
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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.