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Finding the Fourth Proportional to 480,093.21, 720,591.75 and 243,605.61

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Solution

The fourth proportional to 480,093.21, 720,591.75 and 243,605.61 is: 365,637.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,093.21 : 720,591.75 = 243,605.61 : x
  2. Step 2: Convert to fraction form
    480,093.21/720,591.75 = 243,605.61/x
  3. Step 3: Cross multiply
    480,093.21x = 720,591.75 × 243,605.61
  4. Step 4: Simplify right side
    480,093.21x = 175,540,192,819.72
  5. Step 5: Solve for x
    x = 175,540,192,819.72/480,093.21
  6. Step 6: Final answer
    x = 365,637.73

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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.