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Finding the Fourth Proportional to 956.02, 1,433.90 and 262.74

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Solution

The fourth proportional to 956.02, 1,433.90 and 262.74 is: 394.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.02 : 1,433.90 = 262.74 : x
  2. Step 2: Convert to fraction form
    956.02/1,433.90 = 262.74/x
  3. Step 3: Cross multiply
    956.02x = 1,433.90 × 262.74
  4. Step 4: Simplify right side
    956.02x = 376,742.89
  5. Step 5: Solve for x
    x = 376,742.89/956.02
  6. Step 6: Final answer
    x = 394.07

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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.