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Finding the Fourth Proportional to 444,906.90, 667,295.55 and 129,330.90

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Solution

The fourth proportional to 444,906.90, 667,295.55 and 129,330.90 is: 193,977.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,906.90 : 667,295.55 = 129,330.90 : x
  2. Step 2: Convert to fraction form
    444,906.90/667,295.55 = 129,330.90/x
  3. Step 3: Cross multiply
    444,906.90x = 667,295.55 × 129,330.90
  4. Step 4: Simplify right side
    444,906.90x = 86,301,934,047.50
  5. Step 5: Solve for x
    x = 86,301,934,047.50/444,906.90
  6. Step 6: Final answer
    x = 193,977.51

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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.