Finding the Fourth Proportional to 1,581,740.65, 2,182,790.68 and 856,571.54
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Solution
The fourth proportional to 1,581,740.65, 2,182,790.68 and 856,571.54 is: 1,182,062.54
Step by Step Solution
- Step 1: Write the proportion equation
1,581,740.65 : 2,182,790.68 = 856,571.54 : x - Step 2: Convert to fraction form
1,581,740.65/2,182,790.68 = 856,571.54/x - Step 3: Cross multiply
1,581,740.65x = 2,182,790.68 × 856,571.54 - Step 4: Simplify right side
1,581,740.65x = 1,869,716,374,265.25 - Step 5: Solve for x
x = 1,869,716,374,265.25/1,581,740.65 - Step 6: Final answer
x = 1,182,062.54
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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.