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Finding the Fourth Proportional to 954.72, 1,431.18 and 467.51

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Solution

The fourth proportional to 954.72, 1,431.18 and 467.51 is: 700.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    954.72 : 1,431.18 = 467.51 : x
  2. Step 2: Convert to fraction form
    954.72/1,431.18 = 467.51/x
  3. Step 3: Cross multiply
    954.72x = 1,431.18 × 467.51
  4. Step 4: Simplify right side
    954.72x = 669,083.81
  5. Step 5: Solve for x
    x = 669,083.81/954.72
  6. Step 6: Final answer
    x = 700.82

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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.