Finding the Fourth Proportional to 1,116,723.21, 1,541,351.76 and 633,571.17
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Solution
The fourth proportional to 1,116,723.21, 1,541,351.76 and 633,571.17 is: 874,483.52
Step by Step Solution
- Step 1: Write the proportion equation
1,116,723.21 : 1,541,351.76 = 633,571.17 : x - Step 2: Convert to fraction form
1,116,723.21/1,541,351.76 = 633,571.17/x - Step 3: Cross multiply
1,116,723.21x = 1,541,351.76 × 633,571.17 - Step 4: Simplify right side
1,116,723.21x = 976,556,037,964.76 - Step 5: Solve for x
x = 976,556,037,964.76/1,116,723.21 - Step 6: Final answer
x = 874,483.52
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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.