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Finding the Fourth Proportional to 954.64, 1,431.60 and 296.44

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Solution

The fourth proportional to 954.64, 1,431.60 and 296.44 is: 444.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    954.64 : 1,431.60 = 296.44 : x
  2. Step 2: Convert to fraction form
    954.64/1,431.60 = 296.44/x
  3. Step 3: Cross multiply
    954.64x = 1,431.60 × 296.44
  4. Step 4: Simplify right side
    954.64x = 424,383.50
  5. Step 5: Solve for x
    x = 424,383.50/954.64
  6. Step 6: Final answer
    x = 444.55

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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.