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Finding the Fourth Proportional to 933.05, 1,396.09 and 584.76

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Solution

The fourth proportional to 933.05, 1,396.09 and 584.76 is: 874.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    933.05 : 1,396.09 = 584.76 : x
  2. Step 2: Convert to fraction form
    933.05/1,396.09 = 584.76/x
  3. Step 3: Cross multiply
    933.05x = 1,396.09 × 584.76
  4. Step 4: Simplify right side
    933.05x = 816,381.27
  5. Step 5: Solve for x
    x = 816,381.27/933.05
  6. Step 6: Final answer
    x = 874.96

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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.