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Finding the Fourth Proportional to 1,051.14, 1,449.45 and 701.22

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Solution

The fourth proportional to 1,051.14, 1,449.45 and 701.22 is: 966.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051.14 : 1,449.45 = 701.22 : x
  2. Step 2: Convert to fraction form
    1,051.14/1,449.45 = 701.22/x
  3. Step 3: Cross multiply
    1,051.14x = 1,449.45 × 701.22
  4. Step 4: Simplify right side
    1,051.14x = 1,016,383.33
  5. Step 5: Solve for x
    x = 1,016,383.33/1,051.14
  6. Step 6: Final answer
    x = 966.93

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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.