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Finding the Fourth Proportional to 1,148.45, 1,721.51 and 627.37

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Solution

The fourth proportional to 1,148.45, 1,721.51 and 627.37 is: 940.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148.45 : 1,721.51 = 627.37 : x
  2. Step 2: Convert to fraction form
    1,148.45/1,721.51 = 627.37/x
  3. Step 3: Cross multiply
    1,148.45x = 1,721.51 × 627.37
  4. Step 4: Simplify right side
    1,148.45x = 1,080,018.64
  5. Step 5: Solve for x
    x = 1,080,018.64/1,148.45
  6. Step 6: Final answer
    x = 940.42

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.