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Finding the Fourth Proportional to 624,958.34, 862,447.10 and 338,480.78

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Solution

The fourth proportional to 624,958.34, 862,447.10 and 338,480.78 is: 467,105.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,958.34 : 862,447.10 = 338,480.78 : x
  2. Step 2: Convert to fraction form
    624,958.34/862,447.10 = 338,480.78/x
  3. Step 3: Cross multiply
    624,958.34x = 862,447.10 × 338,480.78
  4. Step 4: Simplify right side
    624,958.34x = 291,921,761,112.10
  5. Step 5: Solve for x
    x = 291,921,761,112.10/624,958.34
  6. Step 6: Final answer
    x = 467,105.96

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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.