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Finding the Fourth Proportional to 321,962.40, 483,008.40 and 269,733.60

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Solution

The fourth proportional to 321,962.40, 483,008.40 and 269,733.60 is: 404,654.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,962.40 : 483,008.40 = 269,733.60 : x
  2. Step 2: Convert to fraction form
    321,962.40/483,008.40 = 269,733.60/x
  3. Step 3: Cross multiply
    321,962.40x = 483,008.40 × 269,733.60
  4. Step 4: Simplify right side
    321,962.40x = 130,283,594,562.24
  5. Step 5: Solve for x
    x = 130,283,594,562.24/321,962.40
  6. Step 6: Final answer
    x = 404,654.69

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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.