Finding the Fourth Proportional to 639,514.05, 882,506.26 and 353,027.99
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Solution
The fourth proportional to 639,514.05, 882,506.26 and 353,027.99 is: 487,165.85
Step by Step Solution
- Step 1: Write the proportion equation
639,514.05 : 882,506.26 = 353,027.99 : x - Step 2: Convert to fraction form
639,514.05/882,506.26 = 353,027.99/x - Step 3: Cross multiply
639,514.05x = 882,506.26 × 353,027.99 - Step 4: Simplify right side
639,514.05x = 311,549,409,806.56 - Step 5: Solve for x
x = 311,549,409,806.56/639,514.05 - Step 6: Final answer
x = 487,165.85
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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.