Finding the Fourth Proportional to 691,033.72, 1,036,681.26 and 270,283
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Solution
The fourth proportional to 691,033.72, 1,036,681.26 and 270,283 is: 405,475.61
Step by Step Solution
- Step 1: Write the proportion equation
691,033.72 : 1,036,681.26 = 270,283 : x - Step 2: Convert to fraction form
691,033.72/1,036,681.26 = 270,283/x - Step 3: Cross multiply
691,033.72x = 1,036,681.26 × 270,283 - Step 4: Simplify right side
691,033.72x = 280,197,320,996.58 - Step 5: Solve for x
x = 280,197,320,996.58/691,033.72 - Step 6: Final answer
x = 405,475.61
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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.