Finding the Fourth Proportional to 639,520.18, 882,514.70 and 353,034.12
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Solution
The fourth proportional to 639,520.18, 882,514.70 and 353,034.12 is: 487,174.31
Step by Step Solution
- Step 1: Write the proportion equation
639,520.18 : 882,514.70 = 353,034.12 : x - Step 2: Convert to fraction form
639,520.18/882,514.70 = 353,034.12/x - Step 3: Cross multiply
639,520.18x = 882,514.70 × 353,034.12 - Step 4: Simplify right side
639,520.18x = 311,557,800,501.56 - Step 5: Solve for x
x = 311,557,800,501.56/639,520.18 - Step 6: Final answer
x = 487,174.31
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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.