Finding the Fourth Proportional to 356,001.23, 491,282.30 and 194,866.49
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Solution
The fourth proportional to 356,001.23, 491,282.30 and 194,866.49 is: 268,916.09
Step by Step Solution
- Step 1: Write the proportion equation
356,001.23 : 491,282.30 = 194,866.49 : x - Step 2: Convert to fraction form
356,001.23/491,282.30 = 194,866.49/x - Step 3: Cross multiply
356,001.23x = 491,282.30 × 194,866.49 - Step 4: Simplify right side
356,001.23x = 95,734,457,400.13 - Step 5: Solve for x
x = 95,734,457,400.13/356,001.23 - Step 6: Final answer
x = 268,916.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.