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Finding the Fourth Proportional to 378,000.60, 567,438.30 and 218,203.80

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Solution

The fourth proportional to 378,000.60, 567,438.30 and 218,203.80 is: 327,558.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,000.60 : 567,438.30 = 218,203.80 : x
  2. Step 2: Convert to fraction form
    378,000.60/567,438.30 = 218,203.80/x
  3. Step 3: Cross multiply
    378,000.60x = 567,438.30 × 218,203.80
  4. Step 4: Simplify right side
    378,000.60x = 123,817,193,325.54
  5. Step 5: Solve for x
    x = 123,817,193,325.54/378,000.60
  6. Step 6: Final answer
    x = 327,558.19

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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.