Finding the Fourth Proportional to 1,251,690.64, 1,876,786.14 and 398,393.68
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Solution
The fourth proportional to 1,251,690.64, 1,876,786.14 and 398,393.68 is: 597,351.86
Step by Step Solution
- Step 1: Write the proportion equation
1,251,690.64 : 1,876,786.14 = 398,393.68 : x - Step 2: Convert to fraction form
1,251,690.64/1,876,786.14 = 398,393.68/x - Step 3: Cross multiply
1,251,690.64x = 1,876,786.14 × 398,393.68 - Step 4: Simplify right side
1,251,690.64x = 747,699,736,887.60 - Step 5: Solve for x
x = 747,699,736,887.60/1,251,690.64 - Step 6: Final answer
x = 597,351.86
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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.