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Finding the Fourth Proportional to 603,147.20, 903,408.60 and 366,076.40

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Solution

The fourth proportional to 603,147.20, 903,408.60 and 366,076.40 is: 548,318.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,147.20 : 903,408.60 = 366,076.40 : x
  2. Step 2: Convert to fraction form
    603,147.20/903,408.60 = 366,076.40/x
  3. Step 3: Cross multiply
    603,147.20x = 903,408.60 × 366,076.40
  4. Step 4: Simplify right side
    603,147.20x = 330,716,568,017.04
  5. Step 5: Solve for x
    x = 330,716,568,017.04/603,147.20
  6. Step 6: Final answer
    x = 548,318.17

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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.