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Finding the Fourth Proportional to 638,337.96, 957,472.38 and 195,105.96

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Solution

The fourth proportional to 638,337.96, 957,472.38 and 195,105.96 is: 292,648.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,337.96 : 957,472.38 = 195,105.96 : x
  2. Step 2: Convert to fraction form
    638,337.96/957,472.38 = 195,105.96/x
  3. Step 3: Cross multiply
    638,337.96x = 957,472.38 × 195,105.96
  4. Step 4: Simplify right side
    638,337.96x = 186,808,567,873.39
  5. Step 5: Solve for x
    x = 186,808,567,873.39/638,337.96
  6. Step 6: Final answer
    x = 292,648.38

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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.