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Finding the Fourth Proportional to 1,483.52, 2,225.34 and 443.54

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Solution

The fourth proportional to 1,483.52, 2,225.34 and 443.54 is: 665.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,483.52 : 2,225.34 = 443.54 : x
  2. Step 2: Convert to fraction form
    1,483.52/2,225.34 = 443.54/x
  3. Step 3: Cross multiply
    1,483.52x = 2,225.34 × 443.54
  4. Step 4: Simplify right side
    1,483.52x = 987,013.96
  5. Step 5: Solve for x
    x = 987,013.96/1,483.52
  6. Step 6: Final answer
    x = 665.32

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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.