Finding the Fourth Proportional to 691,039.48, 1,036,115.46 and 291,571
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Solution
The fourth proportional to 691,039.48, 1,036,115.46 and 291,571 is: 437,169.26
Step by Step Solution
- Step 1: Write the proportion equation
691,039.48 : 1,036,115.46 = 291,571 : x - Step 2: Convert to fraction form
691,039.48/1,036,115.46 = 291,571/x - Step 3: Cross multiply
691,039.48x = 1,036,115.46 × 291,571 - Step 4: Simplify right side
691,039.48x = 302,101,220,787.66 - Step 5: Solve for x
x = 302,101,220,787.66/691,039.48 - Step 6: Final answer
x = 437,169.26
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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.