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Finding the Fourth Proportional to 481,654.32, 664,688.28 and 266,797.68

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Solution

The fourth proportional to 481,654.32, 664,688.28 and 266,797.68 is: 368,183.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,654.32 : 664,688.28 = 266,797.68 : x
  2. Step 2: Convert to fraction form
    481,654.32/664,688.28 = 266,797.68/x
  3. Step 3: Cross multiply
    481,654.32x = 664,688.28 × 266,797.68
  4. Step 4: Simplify right side
    481,654.32x = 177,337,291,027.19
  5. Step 5: Solve for x
    x = 177,337,291,027.19/481,654.32
  6. Step 6: Final answer
    x = 368,183.74

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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.