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Finding the Fourth Proportional to 2,944.22, 4,415.60 and 892.22

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Solution

The fourth proportional to 2,944.22, 4,415.60 and 892.22 is: 1,338.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,944.22 : 4,415.60 = 892.22 : x
  2. Step 2: Convert to fraction form
    2,944.22/4,415.60 = 892.22/x
  3. Step 3: Cross multiply
    2,944.22x = 4,415.60 × 892.22
  4. Step 4: Simplify right side
    2,944.22x = 3,939,686.63
  5. Step 5: Solve for x
    x = 3,939,686.63/2,944.22
  6. Step 6: Final answer
    x = 1,338.11

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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.