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Finding the Fourth Proportional to 441,720.80, 663,272.40 and 255,096.80

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Solution

The fourth proportional to 441,720.80, 663,272.40 and 255,096.80 is: 383,044.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,720.80 : 663,272.40 = 255,096.80 : x
  2. Step 2: Convert to fraction form
    441,720.80/663,272.40 = 255,096.80/x
  3. Step 3: Cross multiply
    441,720.80x = 663,272.40 × 255,096.80
  4. Step 4: Simplify right side
    441,720.80x = 169,198,666,768.32
  5. Step 5: Solve for x
    x = 169,198,666,768.32/441,720.80
  6. Step 6: Final answer
    x = 383,044.37

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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.