Finding the Third Proportional to 422,476 and 939,407
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Solution
The third proportional to 422,476 and 939,407 is: 2,088,841.76
Step by Step Solution
- Step 1: Write the proportion equation
422,476 : 939,407 = 939,407 : x - Step 2: Convert to fraction form
422,476/939,407 = 939,407/x - Step 3: Cross multiply
422,476x = 939,407 × 939,407 - Step 4: Simplify right side
422,476x = 882,485,511,649 - Step 5: Solve for x
x = 882,485,511,649/422,476 - Step 6: Final answer
x = 2,088,841.76
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Why These Related Problems?
These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.