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Finding the Fourth Proportional to 267,400.20, 401,100.30 and 214,912.20

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Solution

The fourth proportional to 267,400.20, 401,100.30 and 214,912.20 is: 322,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,400.20 : 401,100.30 = 214,912.20 : x
  2. Step 2: Convert to fraction form
    267,400.20/401,100.30 = 214,912.20/x
  3. Step 3: Cross multiply
    267,400.20x = 401,100.30 × 214,912.20
  4. Step 4: Simplify right side
    267,400.20x = 86,201,347,893.66
  5. Step 5: Solve for x
    x = 86,201,347,893.66/267,400.20
  6. Step 6: Final answer
    x = 322,368.30

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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.