Finding the Fourth Proportional to 1,284,523.08, 1,772,512.56 and 711,456.18
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Solution
The fourth proportional to 1,284,523.08, 1,772,512.56 and 711,456.18 is: 981,737.92
Step by Step Solution
- Step 1: Write the proportion equation
1,284,523.08 : 1,772,512.56 = 711,456.18 : x - Step 2: Convert to fraction form
1,284,523.08/1,772,512.56 = 711,456.18/x - Step 3: Cross multiply
1,284,523.08x = 1,772,512.56 × 711,456.18 - Step 4: Simplify right side
1,284,523.08x = 1,261,065,014,939.62 - Step 5: Solve for x
x = 1,261,065,014,939.62/1,284,523.08 - Step 6: Final answer
x = 981,737.92
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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.