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Finding the Fourth Proportional to 312,767.41, 431,616.12 and 174,944.71

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Solution

The fourth proportional to 312,767.41, 431,616.12 and 174,944.71 is: 241,422.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,767.41 : 431,616.12 = 174,944.71 : x
  2. Step 2: Convert to fraction form
    312,767.41/431,616.12 = 174,944.71/x
  3. Step 3: Cross multiply
    312,767.41x = 431,616.12 × 174,944.71
  4. Step 4: Simplify right side
    312,767.41x = 75,508,956,944.73
  5. Step 5: Solve for x
    x = 75,508,956,944.73/312,767.41
  6. Step 6: Final answer
    x = 241,422.07

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1.5x scale

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.