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Finding the Fourth Proportional to 291,626.44, 402,439.26 and 164,299.30

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Solution

The fourth proportional to 291,626.44, 402,439.26 and 164,299.30 is: 226,730.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,626.44 : 402,439.26 = 164,299.30 : x
  2. Step 2: Convert to fraction form
    291,626.44/402,439.26 = 164,299.30/x
  3. Step 3: Cross multiply
    291,626.44x = 402,439.26 × 164,299.30
  4. Step 4: Simplify right side
    291,626.44x = 66,120,488,710.52
  5. Step 5: Solve for x
    x = 66,120,488,710.52/291,626.44
  6. Step 6: Final answer
    x = 226,730.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.