Finding the Fourth Proportional to 1,251,785.84, 1,727,464.86 and 678,825.84
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Solution
The fourth proportional to 1,251,785.84, 1,727,464.86 and 678,825.84 is: 936,779.88
Step by Step Solution
- Step 1: Write the proportion equation
1,251,785.84 : 1,727,464.86 = 678,825.84 : x - Step 2: Convert to fraction form
1,251,785.84/1,727,464.86 = 678,825.84/x - Step 3: Cross multiply
1,251,785.84x = 1,727,464.86 × 678,825.84 - Step 4: Simplify right side
1,251,785.84x = 1,172,647,784,659.98 - Step 5: Solve for x
x = 1,172,647,784,659.98/1,251,785.84 - Step 6: Final answer
x = 936,779.88
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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.