Finding the Third Proportional to 198,312 and 435,990
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Solution
The third proportional to 198,312 and 435,990 is: 958,526.36
Step by Step Solution
- Step 1: Write the proportion equation
198,312 : 435,990 = 435,990 : x - Step 2: Convert to fraction form
198,312/435,990 = 435,990/x - Step 3: Cross multiply
198,312x = 435,990 × 435,990 - Step 4: Simplify right side
198,312x = 190,087,280,100 - Step 5: Solve for x
x = 190,087,280,100/198,312 - Step 6: Final answer
x = 958,526.36
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Why These Related Problems?
These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.