Finding the Fourth Proportional to 1,329,934.01, 1,995,181.23 and 431,305.68
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Solution
The fourth proportional to 1,329,934.01, 1,995,181.23 and 431,305.68 is: 647,049.39
Step by Step Solution
- Step 1: Write the proportion equation
1,329,934.01 : 1,995,181.23 = 431,305.68 : x - Step 2: Convert to fraction form
1,329,934.01/1,995,181.23 = 431,305.68/x - Step 3: Cross multiply
1,329,934.01x = 1,995,181.23 × 431,305.68 - Step 4: Simplify right side
1,329,934.01x = 860,532,997,128.39 - Step 5: Solve for x
x = 860,532,997,128.39/1,329,934.01 - Step 6: Final answer
x = 647,049.39
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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.