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Finding the Fourth Proportional to 976.36, 1,464.54 and 463.24

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Solution

The fourth proportional to 976.36, 1,464.54 and 463.24 is: 694.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    976.36 : 1,464.54 = 463.24 : x
  2. Step 2: Convert to fraction form
    976.36/1,464.54 = 463.24/x
  3. Step 3: Cross multiply
    976.36x = 1,464.54 × 463.24
  4. Step 4: Simplify right side
    976.36x = 678,433.51
  5. Step 5: Solve for x
    x = 678,433.51/976.36
  6. Step 6: Final answer
    x = 694.86

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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.