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Finding the Fourth Proportional to 469.24, 647.54 and 262.28

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Solution

The fourth proportional to 469.24, 647.54 and 262.28 is: 361.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.24 : 647.54 = 262.28 : x
  2. Step 2: Convert to fraction form
    469.24/647.54 = 262.28/x
  3. Step 3: Cross multiply
    469.24x = 647.54 × 262.28
  4. Step 4: Simplify right side
    469.24x = 169,836.79
  5. Step 5: Solve for x
    x = 169,836.79/469.24
  6. Step 6: Final answer
    x = 361.94

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.