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Finding the Fourth Proportional to 322,467.20, 483,117.60 and 262,980.80

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Solution

The fourth proportional to 322,467.20, 483,117.60 and 262,980.80 is: 393,995.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,467.20 : 483,117.60 = 262,980.80 : x
  2. Step 2: Convert to fraction form
    322,467.20/483,117.60 = 262,980.80/x
  3. Step 3: Cross multiply
    322,467.20x = 483,117.60 × 262,980.80
  4. Step 4: Simplify right side
    322,467.20x = 127,050,652,942.08
  5. Step 5: Solve for x
    x = 127,050,652,942.08/322,467.20
  6. Step 6: Final answer
    x = 393,995.58

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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.