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Finding the Fourth Proportional to 474,558.40, 654,789.31 and 281,026.90

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Solution

The fourth proportional to 474,558.40, 654,789.31 and 281,026.90 is: 387,757.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,558.40 : 654,789.31 = 281,026.90 : x
  2. Step 2: Convert to fraction form
    474,558.40/654,789.31 = 281,026.90/x
  3. Step 3: Cross multiply
    474,558.40x = 654,789.31 × 281,026.90
  4. Step 4: Simplify right side
    474,558.40x = 184,013,409,942.44
  5. Step 5: Solve for x
    x = 184,013,409,942.44/474,558.40
  6. Step 6: Final answer
    x = 387,757.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.