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Finding the Fourth Proportional to 324,262.88, 447,355.68 and 188,273.60

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Solution

The fourth proportional to 324,262.88, 447,355.68 and 188,273.60 is: 259,743.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,262.88 : 447,355.68 = 188,273.60 : x
  2. Step 2: Convert to fraction form
    324,262.88/447,355.68 = 188,273.60/x
  3. Step 3: Cross multiply
    324,262.88x = 447,355.68 × 188,273.60
  4. Step 4: Simplify right side
    324,262.88x = 84,225,264,354.05
  5. Step 5: Solve for x
    x = 84,225,264,354.05/324,262.88
  6. Step 6: Final answer
    x = 259,743.77

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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.