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Finding the Fourth Proportional to 483,358.96, 666,766.60 and 449,147.56

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Solution

The fourth proportional to 483,358.96, 666,766.60 and 449,147.56 is: 619,573.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,358.96 : 666,766.60 = 449,147.56 : x
  2. Step 2: Convert to fraction form
    483,358.96/666,766.60 = 449,147.56/x
  3. Step 3: Cross multiply
    483,358.96x = 666,766.60 × 449,147.56
  4. Step 4: Simplify right side
    483,358.96x = 299,476,591,479.50
  5. Step 5: Solve for x
    x = 299,476,591,479.50/483,358.96
  6. Step 6: Final answer
    x = 619,573.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.