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Finding the Fourth Proportional to 474,515.20, 711,408.30 and 238,027.60

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Solution

The fourth proportional to 474,515.20, 711,408.30 and 238,027.60 is: 356,858.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,515.20 : 711,408.30 = 238,027.60 : x
  2. Step 2: Convert to fraction form
    474,515.20/711,408.30 = 238,027.60/x
  3. Step 3: Cross multiply
    474,515.20x = 711,408.30 × 238,027.60
  4. Step 4: Simplify right side
    474,515.20x = 169,334,810,269.08
  5. Step 5: Solve for x
    x = 169,334,810,269.08/474,515.20
  6. Step 6: Final answer
    x = 356,858.56

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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.