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Finding the Fourth Proportional to 267,814.80, 401,722.20 and 263,878.20

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Solution

The fourth proportional to 267,814.80, 401,722.20 and 263,878.20 is: 395,817.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,814.80 : 401,722.20 = 263,878.20 : x
  2. Step 2: Convert to fraction form
    267,814.80/401,722.20 = 263,878.20/x
  3. Step 3: Cross multiply
    267,814.80x = 401,722.20 × 263,878.20
  4. Step 4: Simplify right side
    267,814.80x = 106,005,731,036.04
  5. Step 5: Solve for x
    x = 106,005,731,036.04/267,814.80
  6. Step 6: Final answer
    x = 395,817.30

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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.