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Finding the Fourth Proportional to 322,406.40, 483,609.60 and 173,107.20

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Solution

The fourth proportional to 322,406.40, 483,609.60 and 173,107.20 is: 259,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,406.40 : 483,609.60 = 173,107.20 : x
  2. Step 2: Convert to fraction form
    322,406.40/483,609.60 = 173,107.20/x
  3. Step 3: Cross multiply
    322,406.40x = 483,609.60 × 173,107.20
  4. Step 4: Simplify right side
    322,406.40x = 83,716,303,749.12
  5. Step 5: Solve for x
    x = 83,716,303,749.12/322,406.40
  6. Step 6: Final answer
    x = 259,660.80

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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.