Finding the Fourth Proportional to 639,156,351.28, 959,010,723.99 and 343,706,146.77
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Solution
The fourth proportional to 639,156,351.28, 959,010,723.99 and 343,706,146.77 is: 515,707,745.05
Step by Step Solution
- Step 1: Write the proportion equation
639,156,351.28 : 959,010,723.99 = 343,706,146.77 : x - Step 2: Convert to fraction form
639,156,351.28/959,010,723.99 = 343,706,146.77/x - Step 3: Cross multiply
639,156,351.28x = 959,010,723.99 × 343,706,146.77 - Step 4: Simplify right side
639,156,351.28x = 329,617,880,653,710,912 - Step 5: Solve for x
x = 329,617,880,653,710,912/639,156,351.28 - Step 6: Final answer
x = 515,707,745.05
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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.