Finding the Fourth Proportional to 1,277,964.08, 1,916,617.76 and 379,193.20
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Solution
The fourth proportional to 1,277,964.08, 1,916,617.76 and 379,193.20 is: 568,692.37
Step by Step Solution
- Step 1: Write the proportion equation
1,277,964.08 : 1,916,617.76 = 379,193.20 : x - Step 2: Convert to fraction form
1,277,964.08/1,916,617.76 = 379,193.20/x - Step 3: Cross multiply
1,277,964.08x = 1,916,617.76 × 379,193.20 - Step 4: Simplify right side
1,277,964.08x = 726,768,421,591.23 - Step 5: Solve for x
x = 726,768,421,591.23/1,277,964.08 - Step 6: Final answer
x = 568,692.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.