Finding the Fourth Proportional to 1,561,193.20, 2,154,418.56 and 882,115.12
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Solution
The fourth proportional to 1,561,193.20, 2,154,418.56 and 882,115.12 is: 1,217,303.01
Step by Step Solution
- Step 1: Write the proportion equation
1,561,193.20 : 2,154,418.56 = 882,115.12 : x - Step 2: Convert to fraction form
1,561,193.20/2,154,418.56 = 882,115.12/x - Step 3: Cross multiply
1,561,193.20x = 2,154,418.56 × 882,115.12 - Step 4: Simplify right side
1,561,193.20x = 1,900,445,186,584.63 - Step 5: Solve for x
x = 1,900,445,186,584.63/1,561,193.20 - Step 6: Final answer
x = 1,217,303.01
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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.