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Finding the Fourth Proportional to 322,491.60, 483,834.60 and 172,803.60

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Solution

The fourth proportional to 322,491.60, 483,834.60 and 172,803.60 is: 259,257.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,491.60 : 483,834.60 = 172,803.60 : x
  2. Step 2: Convert to fraction form
    322,491.60/483,834.60 = 172,803.60/x
  3. Step 3: Cross multiply
    322,491.60x = 483,834.60 × 172,803.60
  4. Step 4: Simplify right side
    322,491.60x = 83,608,360,684.56
  5. Step 5: Solve for x
    x = 83,608,360,684.56/322,491.60
  6. Step 6: Final answer
    x = 259,257.48

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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.