Finding the Fourth Proportional to 1,191,819.12, 1,644,728.34 and 647,953.68
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Solution
The fourth proportional to 1,191,819.12, 1,644,728.34 and 647,953.68 is: 894,185.84
Step by Step Solution
- Step 1: Write the proportion equation
1,191,819.12 : 1,644,728.34 = 647,953.68 : x - Step 2: Convert to fraction form
1,191,819.12/1,644,728.34 = 647,953.68/x - Step 3: Cross multiply
1,191,819.12x = 1,644,728.34 × 647,953.68 - Step 4: Simplify right side
1,191,819.12x = 1,065,707,780,503.29 - Step 5: Solve for x
x = 1,065,707,780,503.29/1,191,819.12 - Step 6: Final answer
x = 894,185.84
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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.