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Finding the Fourth Proportional to 314,276.80, 470,896.80 and 267,620.80

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Solution

The fourth proportional to 314,276.80, 470,896.80 and 267,620.80 is: 400,989.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,276.80 : 470,896.80 = 267,620.80 : x
  2. Step 2: Convert to fraction form
    314,276.80/470,896.80 = 267,620.80/x
  3. Step 3: Cross multiply
    314,276.80x = 470,896.80 × 267,620.80
  4. Step 4: Simplify right side
    314,276.80x = 126,021,778,333.44
  5. Step 5: Solve for x
    x = 126,021,778,333.44/314,276.80
  6. Step 6: Final answer
    x = 400,989.76

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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.