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Finding the Fourth Proportional to 480,818.85, 720,591.21 and 255,694.54

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Solution

The fourth proportional to 480,818.85, 720,591.21 and 255,694.54 is: 383,203.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,818.85 : 720,591.21 = 255,694.54 : x
  2. Step 2: Convert to fraction form
    480,818.85/720,591.21 = 255,694.54/x
  3. Step 3: Cross multiply
    480,818.85x = 720,591.21 × 255,694.54
  4. Step 4: Simplify right side
    480,818.85x = 184,251,237,968.99
  5. Step 5: Solve for x
    x = 184,251,237,968.99/480,818.85
  6. Step 6: Final answer
    x = 383,203.03

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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.