Finding the Fourth Proportional to 661,057.17, 991,586.08 and 436,365.09
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Solution
The fourth proportional to 661,057.17, 991,586.08 and 436,365.09 is: 654,547.85
Step by Step Solution
- Step 1: Write the proportion equation
661,057.17 : 991,586.08 = 436,365.09 : x - Step 2: Convert to fraction form
661,057.17/991,586.08 = 436,365.09/x - Step 3: Cross multiply
661,057.17x = 991,586.08 × 436,365.09 - Step 4: Simplify right side
661,057.17x = 432,693,544,232.59 - Step 5: Solve for x
x = 432,693,544,232.59/661,057.17 - Step 6: Final answer
x = 654,547.85
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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.