Finding the Fourth Proportional to 1,720,631.87, 2,373,799.96 and 985,193.11
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Solution
The fourth proportional to 1,720,631.87, 2,373,799.96 and 985,193.11 is: 1,359,181.70
Step by Step Solution
- Step 1: Write the proportion equation
1,720,631.87 : 2,373,799.96 = 985,193.11 : x - Step 2: Convert to fraction form
1,720,631.87/2,373,799.96 = 985,193.11/x - Step 3: Cross multiply
1,720,631.87x = 2,373,799.96 × 985,193.11 - Step 4: Simplify right side
1,720,631.87x = 2,338,651,348,315.31 - Step 5: Solve for x
x = 2,338,651,348,315.31/1,720,631.87 - Step 6: Final answer
x = 1,359,181.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.