Finding the Fourth Proportional to 1,127,823.14, 1,556,251.99 and 644,419.60
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Solution
The fourth proportional to 1,127,823.14, 1,556,251.99 and 644,419.60 is: 889,216.79
Step by Step Solution
- Step 1: Write the proportion equation
1,127,823.14 : 1,556,251.99 = 644,419.60 : x - Step 2: Convert to fraction form
1,127,823.14/1,556,251.99 = 644,419.60/x - Step 3: Cross multiply
1,127,823.14x = 1,556,251.99 × 644,419.60 - Step 4: Simplify right side
1,127,823.14x = 1,002,879,279,393.33 - Step 5: Solve for x
x = 1,002,879,279,393.33/1,127,823.14 - Step 6: Final answer
x = 889,216.79
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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.