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Finding the Fourth Proportional to 324,679.45, 486,973.50 and 111,443.85

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Solution

The fourth proportional to 324,679.45, 486,973.50 and 111,443.85 is: 167,150.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,679.45 : 486,973.50 = 111,443.85 : x
  2. Step 2: Convert to fraction form
    324,679.45/486,973.50 = 111,443.85/x
  3. Step 3: Cross multiply
    324,679.45x = 486,973.50 × 111,443.85
  4. Step 4: Simplify right side
    324,679.45x = 54,270,201,687.98
  5. Step 5: Solve for x
    x = 54,270,201,687.98/324,679.45
  6. Step 6: Final answer
    x = 167,150.10

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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.