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Finding the Fourth Proportional to 445,515.60, 668,273.40 and 196,683.60

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Solution

The fourth proportional to 445,515.60, 668,273.40 and 196,683.60 is: 295,025.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,515.60 : 668,273.40 = 196,683.60 : x
  2. Step 2: Convert to fraction form
    445,515.60/668,273.40 = 196,683.60/x
  3. Step 3: Cross multiply
    445,515.60x = 668,273.40 × 196,683.60
  4. Step 4: Simplify right side
    445,515.60x = 131,438,418,096.24
  5. Step 5: Solve for x
    x = 131,438,418,096.24/445,515.60
  6. Step 6: Final answer
    x = 295,025.40

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Similar ratio
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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.