Finding the Fourth Proportional to 1,156,738.09, 1,596,246.07 and 640,455.43
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Solution
The fourth proportional to 1,156,738.09, 1,596,246.07 and 640,455.43 is: 883,799.43
Step by Step Solution
- Step 1: Write the proportion equation
1,156,738.09 : 1,596,246.07 = 640,455.43 : x - Step 2: Convert to fraction form
1,156,738.09/1,596,246.07 = 640,455.43/x - Step 3: Cross multiply
1,156,738.09x = 1,596,246.07 × 640,455.43 - Step 4: Simplify right side
1,156,738.09x = 1,022,324,463,147.66 - Step 5: Solve for x
x = 1,022,324,463,147.66/1,156,738.09 - Step 6: Final answer
x = 883,799.43
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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.