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Finding the Fourth Proportional to 453,107.20, 679,077.60 and 275,425.60

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Solution

The fourth proportional to 453,107.20, 679,077.60 and 275,425.60 is: 412,783.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,107.20 : 679,077.60 = 275,425.60 : x
  2. Step 2: Convert to fraction form
    453,107.20/679,077.60 = 275,425.60/x
  3. Step 3: Cross multiply
    453,107.20x = 679,077.60 × 275,425.60
  4. Step 4: Simplify right side
    453,107.20x = 187,035,355,426.56
  5. Step 5: Solve for x
    x = 187,035,355,426.56/453,107.20
  6. Step 6: Final answer
    x = 412,783.90

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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.