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Finding the Fourth Proportional to 621,481.76, 932,025 and 200,659.76

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Solution

The fourth proportional to 621,481.76, 932,025 and 200,659.76 is: 300,925.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,481.76 : 932,025 = 200,659.76 : x
  2. Step 2: Convert to fraction form
    621,481.76/932,025 = 200,659.76/x
  3. Step 3: Cross multiply
    621,481.76x = 932,025 × 200,659.76
  4. Step 4: Simplify right side
    621,481.76x = 187,019,912,814
  5. Step 5: Solve for x
    x = 187,019,912,814/621,481.76
  6. Step 6: Final answer
    x = 300,925.83

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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.