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Finding the Fourth Proportional to 966.98, 1,334.44 and 568.58

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Solution

The fourth proportional to 966.98, 1,334.44 and 568.58 is: 784.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    966.98 : 1,334.44 = 568.58 : x
  2. Step 2: Convert to fraction form
    966.98/1,334.44 = 568.58/x
  3. Step 3: Cross multiply
    966.98x = 1,334.44 × 568.58
  4. Step 4: Simplify right side
    966.98x = 758,735.90
  5. Step 5: Solve for x
    x = 758,735.90/966.98
  6. Step 6: Final answer
    x = 784.64

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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.