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Finding the Fourth Proportional to 621,626.33, 932,796.95 and 261,768.78

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Solution

The fourth proportional to 621,626.33, 932,796.95 and 261,768.78 is: 392,803.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,626.33 : 932,796.95 = 261,768.78 : x
  2. Step 2: Convert to fraction form
    621,626.33/932,796.95 = 261,768.78/x
  3. Step 3: Cross multiply
    621,626.33x = 932,796.95 × 261,768.78
  4. Step 4: Simplify right side
    621,626.33x = 244,177,118,280.38
  5. Step 5: Solve for x
    x = 244,177,118,280.38/621,626.33
  6. Step 6: Final answer
    x = 392,803.69

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1.5x scale

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.