Finding the Fourth Proportional to 1,081,647.84, 1,621,998.39 and 513,190.99
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Solution
The fourth proportional to 1,081,647.84, 1,621,998.39 and 513,190.99 is: 769,561.89
Step by Step Solution
- Step 1: Write the proportion equation
1,081,647.84 : 1,621,998.39 = 513,190.99 : x - Step 2: Convert to fraction form
1,081,647.84/1,621,998.39 = 513,190.99/x - Step 3: Cross multiply
1,081,647.84x = 1,621,998.39 × 513,190.99 - Step 4: Simplify right side
1,081,647.84x = 832,394,959,542.51 - Step 5: Solve for x
x = 832,394,959,542.51/1,081,647.84 - Step 6: Final answer
x = 769,561.89
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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.