Finding the Fourth Proportional to 1,143,379.99, 1,577,866.64 and 627,138.08
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Solution
The fourth proportional to 1,143,379.99, 1,577,866.64 and 627,138.08 is: 865,451.79
Step by Step Solution
- Step 1: Write the proportion equation
1,143,379.99 : 1,577,866.64 = 627,138.08 : x - Step 2: Convert to fraction form
1,143,379.99/1,577,866.64 = 627,138.08/x - Step 3: Cross multiply
1,143,379.99x = 1,577,866.64 × 627,138.08 - Step 4: Simplify right side
1,143,379.99x = 989,540,255,105.65 - Step 5: Solve for x
x = 989,540,255,105.65/1,143,379.99 - Step 6: Final answer
x = 865,451.79
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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.