Finding the Fourth Proportional to 639,153.36, 958,564.17 and 189,768.60
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Solution
The fourth proportional to 639,153.36, 958,564.17 and 189,768.60 is: 284,603.65
Step by Step Solution
- Step 1: Write the proportion equation
639,153.36 : 958,564.17 = 189,768.60 : x - Step 2: Convert to fraction form
639,153.36/958,564.17 = 189,768.60/x - Step 3: Cross multiply
639,153.36x = 958,564.17 × 189,768.60 - Step 4: Simplify right side
639,153.36x = 181,905,380,551.06 - Step 5: Solve for x
x = 181,905,380,551.06/639,153.36 - Step 6: Final answer
x = 284,603.65
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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.