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Finding the Fourth Proportional to 700.97, 1,051.44 and 376.97

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Solution

The fourth proportional to 700.97, 1,051.44 and 376.97 is: 565.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.97 : 1,051.44 = 376.97 : x
  2. Step 2: Convert to fraction form
    700.97/1,051.44 = 376.97/x
  3. Step 3: Cross multiply
    700.97x = 1,051.44 × 376.97
  4. Step 4: Simplify right side
    700.97x = 396,361.34
  5. Step 5: Solve for x
    x = 396,361.34/700.97
  6. Step 6: Final answer
    x = 565.45

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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.