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Finding the Fourth Proportional to 503,203.20, 755,679.60 and 267,007.20

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Solution

The fourth proportional to 503,203.20, 755,679.60 and 267,007.20 is: 400,974.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,203.20 : 755,679.60 = 267,007.20 : x
  2. Step 2: Convert to fraction form
    503,203.20/755,679.60 = 267,007.20/x
  3. Step 3: Cross multiply
    503,203.20x = 755,679.60 × 267,007.20
  4. Step 4: Simplify right side
    503,203.20x = 201,771,894,093.12
  5. Step 5: Solve for x
    x = 201,771,894,093.12/503,203.20
  6. Step 6: Final answer
    x = 400,974.98

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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.