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Finding the Fourth Proportional to 267,896.20, 401,066.70 and 260,120.20

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Solution

The fourth proportional to 267,896.20, 401,066.70 and 260,120.20 is: 389,425.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,896.20 : 401,066.70 = 260,120.20 : x
  2. Step 2: Convert to fraction form
    267,896.20/401,066.70 = 260,120.20/x
  3. Step 3: Cross multiply
    267,896.20x = 401,066.70 × 260,120.20
  4. Step 4: Simplify right side
    267,896.20x = 104,325,550,217.34
  5. Step 5: Solve for x
    x = 104,325,550,217.34/267,896.20
  6. Step 6: Final answer
    x = 389,425.27

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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.