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Finding the Fourth Proportional to 941.84, 1,300.82 and 626.55

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Solution

The fourth proportional to 941.84, 1,300.82 and 626.55 is: 865.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.84 : 1,300.82 = 626.55 : x
  2. Step 2: Convert to fraction form
    941.84/1,300.82 = 626.55/x
  3. Step 3: Cross multiply
    941.84x = 1,300.82 × 626.55
  4. Step 4: Simplify right side
    941.84x = 815,033.59
  5. Step 5: Solve for x
    x = 815,033.59/941.84
  6. Step 6: Final answer
    x = 865.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.