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Finding the Fourth Proportional to 1,127.27, 1,556.28 and 755.48

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Solution

The fourth proportional to 1,127.27, 1,556.28 and 755.48 is: 1,043.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127.27 : 1,556.28 = 755.48 : x
  2. Step 2: Convert to fraction form
    1,127.27/1,556.28 = 755.48/x
  3. Step 3: Cross multiply
    1,127.27x = 1,556.28 × 755.48
  4. Step 4: Simplify right side
    1,127.27x = 1,175,742.31
  5. Step 5: Solve for x
    x = 1,175,742.31/1,127.27
  6. Step 6: Final answer
    x = 1,043.00

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.