Finding the Fourth Proportional to 620,135.80, 930,203.70 and 441,676.60
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Solution
The fourth proportional to 620,135.80, 930,203.70 and 441,676.60 is: 662,514.90
Step by Step Solution
- Step 1: Write the proportion equation
620,135.80 : 930,203.70 = 441,676.60 : x - Step 2: Convert to fraction form
620,135.80/930,203.70 = 441,676.60/x - Step 3: Cross multiply
620,135.80x = 930,203.70 × 441,676.60 - Step 4: Simplify right side
620,135.80x = 410,849,207,523.42 - Step 5: Solve for x
x = 410,849,207,523.42/620,135.80 - Step 6: Final answer
x = 662,514.90
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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.