Finding the Fourth Proportional to 692, 1,038 and 236
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Solution
The fourth proportional to 692, 1,038 and 236 is: 354
Step by Step Solution
- Step 1: Write the proportion equation
692 : 1,038 = 236 : x - Step 2: Convert to fraction form
692/1,038 = 236/x - Step 3: Cross multiply
692x = 1,038 × 236 - Step 4: Simplify right side
692x = 244,968 - Step 5: Solve for x
x = 244,968/692 - Step 6: Final answer
x = 354
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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.