Finding the Fourth Proportional to 515,660.36, 711,600.57 and 286,204.19
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Solution
The fourth proportional to 515,660.36, 711,600.57 and 286,204.19 is: 394,955.83
Step by Step Solution
- Step 1: Write the proportion equation
515,660.36 : 711,600.57 = 286,204.19 : x - Step 2: Convert to fraction form
515,660.36/711,600.57 = 286,204.19/x - Step 3: Cross multiply
515,660.36x = 711,600.57 × 286,204.19 - Step 4: Simplify right side
515,660.36x = 203,663,061,182.39 - Step 5: Solve for x
x = 203,663,061,182.39/515,660.36 - Step 6: Final answer
x = 394,955.83
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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.