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Finding the Fourth Proportional to 474,978.60, 712,467.90 and 119,993.64

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Solution

The fourth proportional to 474,978.60, 712,467.90 and 119,993.64 is: 179,990.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,978.60 : 712,467.90 = 119,993.64 : x
  2. Step 2: Convert to fraction form
    474,978.60/712,467.90 = 119,993.64/x
  3. Step 3: Cross multiply
    474,978.60x = 712,467.90 × 119,993.64
  4. Step 4: Simplify right side
    474,978.60x = 85,491,616,704.16
  5. Step 5: Solve for x
    x = 85,491,616,704.16/474,978.60
  6. Step 6: Final answer
    x = 179,990.46

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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.