Finding the Fourth Proportional to 1,261,697.36, 1,892,359.19 and 408,843.50
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Solution
The fourth proportional to 1,261,697.36, 1,892,359.19 and 408,843.50 is: 613,204.70
Step by Step Solution
- Step 1: Write the proportion equation
1,261,697.36 : 1,892,359.19 = 408,843.50 : x - Step 2: Convert to fraction form
1,261,697.36/1,892,359.19 = 408,843.50/x - Step 3: Cross multiply
1,261,697.36x = 1,892,359.19 × 408,843.50 - Step 4: Simplify right side
1,261,697.36x = 773,678,746,057.08 - Step 5: Solve for x
x = 773,678,746,057.08/1,261,697.36 - Step 6: Final answer
x = 613,204.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.