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Finding the Fourth Proportional to 624,958.35, 862,438.23 and 338,471.88

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Solution

The fourth proportional to 624,958.35, 862,438.23 and 338,471.88 is: 467,088.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,958.35 : 862,438.23 = 338,471.88 : x
  2. Step 2: Convert to fraction form
    624,958.35/862,438.23 = 338,471.88/x
  3. Step 3: Cross multiply
    624,958.35x = 862,438.23 × 338,471.88
  4. Step 4: Simplify right side
    624,958.35x = 291,911,089,091.97
  5. Step 5: Solve for x
    x = 291,911,089,091.97/624,958.35
  6. Step 6: Final answer
    x = 467,088.87

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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.