Finding the Fourth Proportional to 939,493.21, 1,296,836.85 and 557,519.98
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Solution
The fourth proportional to 939,493.21, 1,296,836.85 and 557,519.98 is: 769,577.09
Step by Step Solution
- Step 1: Write the proportion equation
939,493.21 : 1,296,836.85 = 557,519.98 : x - Step 2: Convert to fraction form
939,493.21/1,296,836.85 = 557,519.98/x - Step 3: Cross multiply
939,493.21x = 1,296,836.85 × 557,519.98 - Step 4: Simplify right side
939,493.21x = 723,012,454,675.26 - Step 5: Solve for x
x = 723,012,454,675.26/939,493.21 - Step 6: Final answer
x = 769,577.09
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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.