Finding the Fourth Proportional to 1,252,743.11, 1,728,790.07 and 679,783.26
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Solution
The fourth proportional to 1,252,743.11, 1,728,790.07 and 679,783.26 is: 938,103.39
Step by Step Solution
- Step 1: Write the proportion equation
1,252,743.11 : 1,728,790.07 = 679,783.26 : x - Step 2: Convert to fraction form
1,252,743.11/1,728,790.07 = 679,783.26/x - Step 3: Cross multiply
1,252,743.11x = 1,728,790.07 × 679,783.26 - Step 4: Simplify right side
1,252,743.11x = 1,175,202,549,640.23 - Step 5: Solve for x
x = 1,175,202,549,640.23/1,252,743.11 - Step 6: Final answer
x = 938,103.39
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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.