Finding the Third Proportional to 391,181.91 and 857,109.09
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Solution
The third proportional to 391,181.91 and 857,109.09 is: 1,877,990.74
Step by Step Solution
- Step 1: Write the proportion equation
391,181.91 : 857,109.09 = 857,109.09 : x - Step 2: Convert to fraction form
391,181.91/857,109.09 = 857,109.09/x - Step 3: Cross multiply
391,181.91x = 857,109.09 × 857,109.09 - Step 4: Simplify right side
391,181.91x = 734,635,998,588.95 - Step 5: Solve for x
x = 734,635,998,588.95/391,181.91 - Step 6: Final answer
x = 1,877,990.74
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These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.