Finding the Fourth Proportional to 523,861.81, 781,207.89 and 519,073.09
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Solution
The fourth proportional to 523,861.81, 781,207.89 and 519,073.09 is: 774,066.72
Step by Step Solution
- Step 1: Write the proportion equation
523,861.81 : 781,207.89 = 519,073.09 : x - Step 2: Convert to fraction form
523,861.81/781,207.89 = 519,073.09/x - Step 3: Cross multiply
523,861.81x = 781,207.89 × 519,073.09 - Step 4: Simplify right side
523,861.81x = 405,503,993,394.68 - Step 5: Solve for x
x = 405,503,993,394.68/523,861.81 - Step 6: Final answer
x = 774,066.72
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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.