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Finding the Fourth Proportional to 503,235.20, 755,727.60 and 267,039.20

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Solution

The fourth proportional to 503,235.20, 755,727.60 and 267,039.20 is: 401,023.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,235.20 : 755,727.60 = 267,039.20 : x
  2. Step 2: Convert to fraction form
    503,235.20/755,727.60 = 267,039.20/x
  3. Step 3: Cross multiply
    503,235.20x = 755,727.60 × 267,039.20
  4. Step 4: Simplify right side
    503,235.20x = 201,808,893,721.92
  5. Step 5: Solve for x
    x = 201,808,893,721.92/503,235.20
  6. Step 6: Final answer
    x = 401,023.01

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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.