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Finding the Fourth Proportional to 946, 1,419 and 262

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Solution

The fourth proportional to 946, 1,419 and 262 is: 393

Step by Step Solution

  1. Step 1: Write the proportion equation
    946 : 1,419 = 262 : x
  2. Step 2: Convert to fraction form
    946/1,419 = 262/x
  3. Step 3: Cross multiply
    946x = 1,419 × 262
  4. Step 4: Simplify right side
    946x = 371,778
  5. Step 5: Solve for x
    x = 371,778/946
  6. Step 6: Final answer
    x = 393

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Similar ratio
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1.5x scale

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.