Finding the Fourth Proportional to 1,251,771.17, 1,727,444.67 and 678,811.19
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Solution
The fourth proportional to 1,251,771.17, 1,727,444.67 and 678,811.19 is: 936,759.69
Step by Step Solution
- Step 1: Write the proportion equation
1,251,771.17 : 1,727,444.67 = 678,811.19 : x - Step 2: Convert to fraction form
1,251,771.17/1,727,444.67 = 678,811.19/x - Step 3: Cross multiply
1,251,771.17x = 1,727,444.67 × 678,811.19 - Step 4: Simplify right side
1,251,771.17x = 1,172,608,772,488.09 - Step 5: Solve for x
x = 1,172,608,772,488.09/1,251,771.17 - Step 6: Final answer
x = 936,759.69
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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.