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Finding the Fourth Proportional to 354,532.54, 530,550.60 and 221,475.46

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Solution

The fourth proportional to 354,532.54, 530,550.60 and 221,475.46 is: 331,433.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,532.54 : 530,550.60 = 221,475.46 : x
  2. Step 2: Convert to fraction form
    354,532.54/530,550.60 = 221,475.46/x
  3. Step 3: Cross multiply
    354,532.54x = 530,550.60 × 221,475.46
  4. Step 4: Simplify right side
    354,532.54x = 117,503,938,188.28
  5. Step 5: Solve for x
    x = 117,503,938,188.28/354,532.54
  6. Step 6: Final answer
    x = 331,433.44

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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.