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Finding the Fourth Proportional to 835.01, 1,152.32 and 481.01

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Solution

The fourth proportional to 835.01, 1,152.32 and 481.01 is: 663.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.01 : 1,152.32 = 481.01 : x
  2. Step 2: Convert to fraction form
    835.01/1,152.32 = 481.01/x
  3. Step 3: Cross multiply
    835.01x = 1,152.32 × 481.01
  4. Step 4: Simplify right side
    835.01x = 554,269.28
  5. Step 5: Solve for x
    x = 554,269.28/835.01
  6. Step 6: Final answer
    x = 663.79

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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.