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Finding the Fourth Proportional to 1,300.10, 1,940.89 and 1,254.54

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Solution

The fourth proportional to 1,300.10, 1,940.89 and 1,254.54 is: 1,872.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300.10 : 1,940.89 = 1,254.54 : x
  2. Step 2: Convert to fraction form
    1,300.10/1,940.89 = 1,254.54/x
  3. Step 3: Cross multiply
    1,300.10x = 1,940.89 × 1,254.54
  4. Step 4: Simplify right side
    1,300.10x = 2,434,924.14
  5. Step 5: Solve for x
    x = 2,434,924.14/1,300.10
  6. Step 6: Final answer
    x = 1,872.87

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.