Finding the Fourth Proportional to 3,821,211.05, 5,731,815.56 and 2,619,490.12
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Solution
The fourth proportional to 3,821,211.05, 5,731,815.56 and 2,619,490.12 is: 3,929,234.48
Step by Step Solution
- Step 1: Write the proportion equation
3,821,211.05 : 5,731,815.56 = 2,619,490.12 : x - Step 2: Convert to fraction form
3,821,211.05/5,731,815.56 = 2,619,490.12/x - Step 3: Cross multiply
3,821,211.05x = 5,731,815.56 × 2,619,490.12 - Step 4: Simplify right side
3,821,211.05x = 15,014,434,201,655.28 - Step 5: Solve for x
x = 15,014,434,201,655.28/3,821,211.05 - Step 6: Final answer
x = 3,929,234.48
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Double scale
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Similar ratio
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1.5x scale
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.