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Finding the Fourth Proportional to 1,748.03, 2,411.99 and 1,040.30

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Solution

The fourth proportional to 1,748.03, 2,411.99 and 1,040.30 is: 1,435.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.03 : 2,411.99 = 1,040.30 : x
  2. Step 2: Convert to fraction form
    1,748.03/2,411.99 = 1,040.30/x
  3. Step 3: Cross multiply
    1,748.03x = 2,411.99 × 1,040.30
  4. Step 4: Simplify right side
    1,748.03x = 2,509,181.14
  5. Step 5: Solve for x
    x = 2,509,181.14/1,748.03
  6. Step 6: Final answer
    x = 1,435.43

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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.