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Finding the Fourth Proportional to 619,466.40, 929,199.60 and 245,440.80

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Solution

The fourth proportional to 619,466.40, 929,199.60 and 245,440.80 is: 368,161.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,466.40 : 929,199.60 = 245,440.80 : x
  2. Step 2: Convert to fraction form
    619,466.40/929,199.60 = 245,440.80/x
  3. Step 3: Cross multiply
    619,466.40x = 929,199.60 × 245,440.80
  4. Step 4: Simplify right side
    619,466.40x = 228,063,493,183.68
  5. Step 5: Solve for x
    x = 228,063,493,183.68/619,466.40
  6. Step 6: Final answer
    x = 368,161.20

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Similar ratio
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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.