Finding the Fourth Proportional to 1,217,721.11, 1,819,114.74 and 877,861.31
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Solution
The fourth proportional to 1,217,721.11, 1,819,114.74 and 877,861.31 is: 1,311,409.02
Step by Step Solution
- Step 1: Write the proportion equation
1,217,721.11 : 1,819,114.74 = 877,861.31 : x - Step 2: Convert to fraction form
1,217,721.11/1,819,114.74 = 877,861.31/x - Step 3: Cross multiply
1,217,721.11x = 1,819,114.74 × 877,861.31 - Step 4: Simplify right side
1,217,721.11x = 1,596,930,439,601.14 - Step 5: Solve for x
x = 1,596,930,439,601.14/1,217,721.11 - Step 6: Final answer
x = 1,311,409.02
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.