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Finding the Fourth Proportional to 305,813.91, 422,056.68 and 175,003.66

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Solution

The fourth proportional to 305,813.91, 422,056.68 and 175,003.66 is: 241,524.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,813.91 : 422,056.68 = 175,003.66 : x
  2. Step 2: Convert to fraction form
    305,813.91/422,056.68 = 175,003.66/x
  3. Step 3: Cross multiply
    305,813.91x = 422,056.68 × 175,003.66
  4. Step 4: Simplify right side
    305,813.91x = 73,861,464,785.79
  5. Step 5: Solve for x
    x = 73,861,464,785.79/305,813.91
  6. Step 6: Final answer
    x = 241,524.22

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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.