Finding the Fourth Proportional to 1,586,840.88, 2,189,832.53 and 861,682.17
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Solution
The fourth proportional to 1,586,840.88, 2,189,832.53 and 861,682.17 is: 1,189,117.11
Step by Step Solution
- Step 1: Write the proportion equation
1,586,840.88 : 2,189,832.53 = 861,682.17 : x - Step 2: Convert to fraction form
1,586,840.88/2,189,832.53 = 861,682.17/x - Step 3: Cross multiply
1,586,840.88x = 2,189,832.53 × 861,682.17 - Step 4: Simplify right side
1,586,840.88x = 1,886,939,642,078.58 - Step 5: Solve for x
x = 1,886,939,642,078.58/1,586,840.88 - Step 6: Final answer
x = 1,189,117.11
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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.