Finding the Fourth Proportional to 1,686,338.19, 2,327,165.07 and 911,984.15
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Solution
The fourth proportional to 1,686,338.19, 2,327,165.07 and 911,984.15 is: 1,258,548.05
Step by Step Solution
- Step 1: Write the proportion equation
1,686,338.19 : 2,327,165.07 = 911,984.15 : x - Step 2: Convert to fraction form
1,686,338.19/2,327,165.07 = 911,984.15/x - Step 3: Cross multiply
1,686,338.19x = 2,327,165.07 × 911,984.15 - Step 4: Simplify right side
1,686,338.19x = 2,122,337,646,637.82 - Step 5: Solve for x
x = 2,122,337,646,637.82/1,686,338.19 - Step 6: Final answer
x = 1,258,548.05
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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.