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Finding the Fourth Proportional to 267,189.44, 398,426.45 and 264,789.81

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Solution

The fourth proportional to 267,189.44, 398,426.45 and 264,789.81 is: 394,848.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,189.44 : 398,426.45 = 264,789.81 : x
  2. Step 2: Convert to fraction form
    267,189.44/398,426.45 = 264,789.81/x
  3. Step 3: Cross multiply
    267,189.44x = 398,426.45 × 264,789.81
  4. Step 4: Simplify right side
    267,189.44x = 105,499,262,670.53
  5. Step 5: Solve for x
    x = 105,499,262,670.53/267,189.44
  6. Step 6: Final answer
    x = 394,848.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.