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Finding the Fourth Proportional to 1,449.46, 2,173.20 and 583

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Solution

The fourth proportional to 1,449.46, 2,173.20 and 583 is: 874.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449.46 : 2,173.20 = 583 : x
  2. Step 2: Convert to fraction form
    1,449.46/2,173.20 = 583/x
  3. Step 3: Cross multiply
    1,449.46x = 2,173.20 × 583
  4. Step 4: Simplify right side
    1,449.46x = 1,266,975.60
  5. Step 5: Solve for x
    x = 1,266,975.60/1,449.46
  6. Step 6: Final answer
    x = 874.10

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Why These Related Problems?

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