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Finding the Fourth Proportional to 322,090.80, 483,136.20 and 294,534.60

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Solution

The fourth proportional to 322,090.80, 483,136.20 and 294,534.60 is: 441,801.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,090.80 : 483,136.20 = 294,534.60 : x
  2. Step 2: Convert to fraction form
    322,090.80/483,136.20 = 294,534.60/x
  3. Step 3: Cross multiply
    322,090.80x = 483,136.20 × 294,534.60
  4. Step 4: Simplify right side
    322,090.80x = 142,300,327,412.52
  5. Step 5: Solve for x
    x = 142,300,327,412.52/322,090.80
  6. Step 6: Final answer
    x = 441,801.90

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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.