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Finding the Fourth Proportional to 957.01, 1,435.46 and 263.67

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Solution

The fourth proportional to 957.01, 1,435.46 and 263.67 is: 395.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    957.01 : 1,435.46 = 263.67 : x
  2. Step 2: Convert to fraction form
    957.01/1,435.46 = 263.67/x
  3. Step 3: Cross multiply
    957.01x = 1,435.46 × 263.67
  4. Step 4: Simplify right side
    957.01x = 378,480.56
  5. Step 5: Solve for x
    x = 378,480.56/957.01
  6. Step 6: Final answer
    x = 395.48

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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.