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Finding the Fourth Proportional to 1,546.67, 2,319.76 and 506.67

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Solution

The fourth proportional to 1,546.67, 2,319.76 and 506.67 is: 759.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,546.67 : 2,319.76 = 506.67 : x
  2. Step 2: Convert to fraction form
    1,546.67/2,319.76 = 506.67/x
  3. Step 3: Cross multiply
    1,546.67x = 2,319.76 × 506.67
  4. Step 4: Simplify right side
    1,546.67x = 1,175,352.80
  5. Step 5: Solve for x
    x = 1,175,352.80/1,546.67
  6. Step 6: Final answer
    x = 759.92

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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.