Finding the Fourth Proportional to 539,810.10, 809,715.15 and 499,259.70
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Solution
The fourth proportional to 539,810.10, 809,715.15 and 499,259.70 is: 748,889.55
Step by Step Solution
- Step 1: Write the proportion equation
539,810.10 : 809,715.15 = 499,259.70 : x - Step 2: Convert to fraction form
539,810.10/809,715.15 = 499,259.70/x - Step 3: Cross multiply
539,810.10x = 809,715.15 × 499,259.70 - Step 4: Simplify right side
539,810.10x = 404,258,142,874.46 - Step 5: Solve for x
x = 404,258,142,874.46/539,810.10 - Step 6: Final answer
x = 748,889.55
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Similar ratio
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1.5x scale
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.