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Finding the Fourth Proportional to 836.24, 1,153.99 and 463.23

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Solution

The fourth proportional to 836.24, 1,153.99 and 463.23 is: 639.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    836.24 : 1,153.99 = 463.23 : x
  2. Step 2: Convert to fraction form
    836.24/1,153.99 = 463.23/x
  3. Step 3: Cross multiply
    836.24x = 1,153.99 × 463.23
  4. Step 4: Simplify right side
    836.24x = 534,562.79
  5. Step 5: Solve for x
    x = 534,562.79/836.24
  6. Step 6: Final answer
    x = 639.25

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Why These Related Problems?

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