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Finding the Fourth Proportional to 2,792.19, 4,188.69 and 844.56

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Solution

The fourth proportional to 2,792.19, 4,188.69 and 844.56 is: 1,266.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,792.19 : 4,188.69 = 844.56 : x
  2. Step 2: Convert to fraction form
    2,792.19/4,188.69 = 844.56/x
  3. Step 3: Cross multiply
    2,792.19x = 4,188.69 × 844.56
  4. Step 4: Simplify right side
    2,792.19x = 3,537,600.03
  5. Step 5: Solve for x
    x = 3,537,600.03/2,792.19
  6. Step 6: Final answer
    x = 1,266.96

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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.