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Finding the Fourth Proportional to 957.32, 1,435.98 and 263.97

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Solution

The fourth proportional to 957.32, 1,435.98 and 263.97 is: 395.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    957.32 : 1,435.98 = 263.97 : x
  2. Step 2: Convert to fraction form
    957.32/1,435.98 = 263.97/x
  3. Step 3: Cross multiply
    957.32x = 1,435.98 × 263.97
  4. Step 4: Simplify right side
    957.32x = 379,055.64
  5. Step 5: Solve for x
    x = 379,055.64/957.32
  6. Step 6: Final answer
    x = 395.96

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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.