Finding the Fourth Proportional to 661,059.17, 991,589.08 and 436,367.09
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Solution
The fourth proportional to 661,059.17, 991,589.08 and 436,367.09 is: 654,550.85
Step by Step Solution
- Step 1: Write the proportion equation
661,059.17 : 991,589.08 = 436,367.09 : x - Step 2: Convert to fraction form
661,059.17/991,589.08 = 436,367.09/x - Step 3: Cross multiply
661,059.17x = 991,589.08 × 436,367.09 - Step 4: Simplify right side
661,059.17x = 432,696,841,315.38 - Step 5: Solve for x
x = 432,696,841,315.38/661,059.17 - Step 6: Final answer
x = 654,550.85
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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.