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Finding the Fourth Proportional to 1,016.64, 1,524.96 and 332.64

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Solution

The fourth proportional to 1,016.64, 1,524.96 and 332.64 is: 498.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016.64 : 1,524.96 = 332.64 : x
  2. Step 2: Convert to fraction form
    1,016.64/1,524.96 = 332.64/x
  3. Step 3: Cross multiply
    1,016.64x = 1,524.96 × 332.64
  4. Step 4: Simplify right side
    1,016.64x = 507,262.69
  5. Step 5: Solve for x
    x = 507,262.69/1,016.64
  6. Step 6: Final answer
    x = 498.96

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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.