Finding the Fourth Proportional to 1,327,243.20, 1,831,542.86 and 783,554.13
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Solution
The fourth proportional to 1,327,243.20, 1,831,542.86 and 783,554.13 is: 1,081,273.55
Step by Step Solution
- Step 1: Write the proportion equation
1,327,243.20 : 1,831,542.86 = 783,554.13 : x - Step 2: Convert to fraction form
1,327,243.20/1,831,542.86 = 783,554.13/x - Step 3: Cross multiply
1,327,243.20x = 1,831,542.86 × 783,554.13 - Step 4: Simplify right side
1,327,243.20x = 1,435,112,963,067.30 - Step 5: Solve for x
x = 1,435,112,963,067.30/1,327,243.20 - Step 6: Final answer
x = 1,081,273.55
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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.