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Finding the Fourth Proportional to 976.66, 1,464.99 and 246.23

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Solution

The fourth proportional to 976.66, 1,464.99 and 246.23 is: 369.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    976.66 : 1,464.99 = 246.23 : x
  2. Step 2: Convert to fraction form
    976.66/1,464.99 = 246.23/x
  3. Step 3: Cross multiply
    976.66x = 1,464.99 × 246.23
  4. Step 4: Simplify right side
    976.66x = 360,715.93
  5. Step 5: Solve for x
    x = 360,715.93/976.66
  6. Step 6: Final answer
    x = 369.34

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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.