Finding the Fourth Proportional to 1,292,219.92, 1,783,263.56 and 719,247.79
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Solution
The fourth proportional to 1,292,219.92, 1,783,263.56 and 719,247.79 is: 992,561.99
Step by Step Solution
- Step 1: Write the proportion equation
1,292,219.92 : 1,783,263.56 = 719,247.79 : x - Step 2: Convert to fraction form
1,292,219.92/1,783,263.56 = 719,247.79/x - Step 3: Cross multiply
1,292,219.92x = 1,783,263.56 × 719,247.79 - Step 4: Simplify right side
1,292,219.92x = 1,282,608,374,517.53 - Step 5: Solve for x
x = 1,282,608,374,517.53/1,292,219.92 - Step 6: Final answer
x = 992,561.99
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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.