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Finding the Fourth Proportional to 293,639.78, 440,453.50 and 93,960.20

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Solution

The fourth proportional to 293,639.78, 440,453.50 and 93,960.20 is: 140,938.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,639.78 : 440,453.50 = 93,960.20 : x
  2. Step 2: Convert to fraction form
    293,639.78/440,453.50 = 93,960.20/x
  3. Step 3: Cross multiply
    293,639.78x = 440,453.50 × 93,960.20
  4. Step 4: Simplify right side
    293,639.78x = 41,385,099,816.93
  5. Step 5: Solve for x
    x = 41,385,099,816.93/293,639.78
  6. Step 6: Final answer
    x = 140,938.33

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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.