Finding the Fourth Proportional to 1,581,393.51, 2,182,313.07 and 856,238.99
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Solution
The fourth proportional to 1,581,393.51, 2,182,313.07 and 856,238.99 is: 1,181,604.40
Step by Step Solution
- Step 1: Write the proportion equation
1,581,393.51 : 2,182,313.07 = 856,238.99 : x - Step 2: Convert to fraction form
1,581,393.51/2,182,313.07 = 856,238.99/x - Step 3: Cross multiply
1,581,393.51x = 2,182,313.07 × 856,238.99 - Step 4: Simplify right side
1,581,393.51x = 1,868,581,528,009.03 - Step 5: Solve for x
x = 1,868,581,528,009.03/1,581,393.51 - Step 6: Final answer
x = 1,181,604.40
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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.