Finding the Fourth Proportional to 1,239,076.05, 1,858,614.21 and 440,389.19
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Solution
The fourth proportional to 1,239,076.05, 1,858,614.21 and 440,389.19 is: 660,583.83
Step by Step Solution
- Step 1: Write the proportion equation
1,239,076.05 : 1,858,614.21 = 440,389.19 : x - Step 2: Convert to fraction form
1,239,076.05/1,858,614.21 = 440,389.19/x - Step 3: Cross multiply
1,239,076.05x = 1,858,614.21 × 440,389.19 - Step 4: Simplify right side
1,239,076.05x = 818,513,597,171.32 - Step 5: Solve for x
x = 818,513,597,171.32/1,239,076.05 - Step 6: Final answer
x = 660,583.83
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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.