Finding the Fourth Proportional to 1,128,549.36, 1,557,393.84 and 619,260.24
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Solution
The fourth proportional to 1,128,549.36, 1,557,393.84 and 619,260.24 is: 854,576.78
Step by Step Solution
- Step 1: Write the proportion equation
1,128,549.36 : 1,557,393.84 = 619,260.24 : x - Step 2: Convert to fraction form
1,128,549.36/1,557,393.84 = 619,260.24/x - Step 3: Cross multiply
1,128,549.36x = 1,557,393.84 × 619,260.24 - Step 4: Simplify right side
1,128,549.36x = 964,432,083,132.92 - Step 5: Solve for x
x = 964,432,083,132.92/1,128,549.36 - Step 6: Final answer
x = 854,576.78
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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.