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Finding the Fourth Proportional to 954.54, 1,431.80 and 567.22

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Solution

The fourth proportional to 954.54, 1,431.80 and 567.22 is: 850.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    954.54 : 1,431.80 = 567.22 : x
  2. Step 2: Convert to fraction form
    954.54/1,431.80 = 567.22/x
  3. Step 3: Cross multiply
    954.54x = 1,431.80 × 567.22
  4. Step 4: Simplify right side
    954.54x = 812,144.55
  5. Step 5: Solve for x
    x = 812,144.55/954.54
  6. Step 6: Final answer
    x = 850.83

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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.