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Finding the Fourth Proportional to 1,084.84, 1,626.70 and 529.44

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Solution

The fourth proportional to 1,084.84, 1,626.70 and 529.44 is: 793.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,084.84 : 1,626.70 = 529.44 : x
  2. Step 2: Convert to fraction form
    1,084.84/1,626.70 = 529.44/x
  3. Step 3: Cross multiply
    1,084.84x = 1,626.70 × 529.44
  4. Step 4: Simplify right side
    1,084.84x = 861,240.05
  5. Step 5: Solve for x
    x = 861,240.05/1,084.84
  6. Step 6: Final answer
    x = 793.89

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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.