Finding the Fourth Proportional to 1,243,171.05, 1,864,571.81 and 344,519.08
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Solution
The fourth proportional to 1,243,171.05, 1,864,571.81 and 344,519.08 is: 516,727.41
Step by Step Solution
- Step 1: Write the proportion equation
1,243,171.05 : 1,864,571.81 = 344,519.08 : x - Step 2: Convert to fraction form
1,243,171.05/1,864,571.81 = 344,519.08/x - Step 3: Cross multiply
1,243,171.05x = 1,864,571.81 × 344,519.08 - Step 4: Simplify right side
1,243,171.05x = 642,380,560,775.00 - Step 5: Solve for x
x = 642,380,560,775.00/1,243,171.05 - Step 6: Final answer
x = 516,727.41
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.