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Finding the Fourth Proportional to 933.24, 1,400.22 and 446.34

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Solution

The fourth proportional to 933.24, 1,400.22 and 446.34 is: 669.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    933.24 : 1,400.22 = 446.34 : x
  2. Step 2: Convert to fraction form
    933.24/1,400.22 = 446.34/x
  3. Step 3: Cross multiply
    933.24x = 1,400.22 × 446.34
  4. Step 4: Simplify right side
    933.24x = 624,974.19
  5. Step 5: Solve for x
    x = 624,974.19/933.24
  6. Step 6: Final answer
    x = 669.68

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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.