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Finding the Fourth Proportional to 954.12, 1,431.47 and 467.10

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Solution

The fourth proportional to 954.12, 1,431.47 and 467.10 is: 700.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    954.12 : 1,431.47 = 467.10 : x
  2. Step 2: Convert to fraction form
    954.12/1,431.47 = 467.10/x
  3. Step 3: Cross multiply
    954.12x = 1,431.47 × 467.10
  4. Step 4: Simplify right side
    954.12x = 668,639.64
  5. Step 5: Solve for x
    x = 668,639.64/954.12
  6. Step 6: Final answer
    x = 700.79

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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.