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Finding the Fourth Proportional to 392,257.80, 587,609.10 and 234,016.20

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Solution

The fourth proportional to 392,257.80, 587,609.10 and 234,016.20 is: 350,560.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,257.80 : 587,609.10 = 234,016.20 : x
  2. Step 2: Convert to fraction form
    392,257.80/587,609.10 = 234,016.20/x
  3. Step 3: Cross multiply
    392,257.80x = 587,609.10 × 234,016.20
  4. Step 4: Simplify right side
    392,257.80x = 137,510,048,667.42
  5. Step 5: Solve for x
    x = 137,510,048,667.42/392,257.80
  6. Step 6: Final answer
    x = 350,560.39

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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.