Finding the Fourth Proportional to 1,905,930.88, 2,629,191.84 and 1,543,763.68
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Solution
The fourth proportional to 1,905,930.88, 2,629,191.84 and 1,543,763.68 is: 2,129,589.75
Step by Step Solution
- Step 1: Write the proportion equation
1,905,930.88 : 2,629,191.84 = 1,543,763.68 : x - Step 2: Convert to fraction form
1,905,930.88/2,629,191.84 = 1,543,763.68/x - Step 3: Cross multiply
1,905,930.88x = 2,629,191.84 × 1,543,763.68 - Step 4: Simplify right side
1,905,930.88x = 4,058,850,870,344.37 - Step 5: Solve for x
x = 4,058,850,870,344.37/1,905,930.88 - Step 6: Final answer
x = 2,129,589.75
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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.