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Finding the Fourth Proportional to 453,945.60, 679,881.60 and 267,321.60

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Solution

The fourth proportional to 453,945.60, 679,881.60 and 267,321.60 is: 400,371.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,945.60 : 679,881.60 = 267,321.60 : x
  2. Step 2: Convert to fraction form
    453,945.60/679,881.60 = 267,321.60/x
  3. Step 3: Cross multiply
    453,945.60x = 679,881.60 × 267,321.60
  4. Step 4: Simplify right side
    453,945.60x = 181,747,037,122.56
  5. Step 5: Solve for x
    x = 181,747,037,122.56/453,945.60
  6. Step 6: Final answer
    x = 400,371.84

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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.