Finding the Fourth Proportional to 691,154.19, 953,753.00 and 385,220.43
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Solution
The fourth proportional to 691,154.19, 953,753.00 and 385,220.43 is: 531,582.02
Step by Step Solution
- Step 1: Write the proportion equation
691,154.19 : 953,753.00 = 385,220.43 : x - Step 2: Convert to fraction form
691,154.19/953,753.00 = 385,220.43/x - Step 3: Cross multiply
691,154.19x = 953,753.00 × 385,220.43 - Step 4: Simplify right side
691,154.19x = 367,405,138,847.69 - Step 5: Solve for x
x = 367,405,138,847.69/691,154.19 - Step 6: Final answer
x = 531,582.02
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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.