Finding the Fourth Proportional to 621,832.80, 927,899.36 and 554,812.20
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Solution
The fourth proportional to 621,832.80, 927,899.36 and 554,812.20 is: 827,891.17
Step by Step Solution
- Step 1: Write the proportion equation
621,832.80 : 927,899.36 = 554,812.20 : x - Step 2: Convert to fraction form
621,832.80/927,899.36 = 554,812.20/x - Step 3: Cross multiply
621,832.80x = 927,899.36 × 554,812.20 - Step 4: Simplify right side
621,832.80x = 514,809,882,526.13 - Step 5: Solve for x
x = 514,809,882,526.13/621,832.80 - Step 6: Final answer
x = 827,891.17
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.