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Finding the Fourth Proportional to 477,286.79, 658,658.25 and 262,440.70

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Solution

The fourth proportional to 477,286.79, 658,658.25 and 262,440.70 is: 362,169.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,286.79 : 658,658.25 = 262,440.70 : x
  2. Step 2: Convert to fraction form
    477,286.79/658,658.25 = 262,440.70/x
  3. Step 3: Cross multiply
    477,286.79x = 658,658.25 × 262,440.70
  4. Step 4: Simplify right side
    477,286.79x = 172,858,732,190.78
  5. Step 5: Solve for x
    x = 172,858,732,190.78/477,286.79
  6. Step 6: Final answer
    x = 362,169.53

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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.