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Finding the Fourth Proportional to 1,183.81, 1,775.43 and 525.33

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Solution

The fourth proportional to 1,183.81, 1,775.43 and 525.33 is: 787.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183.81 : 1,775.43 = 525.33 : x
  2. Step 2: Convert to fraction form
    1,183.81/1,775.43 = 525.33/x
  3. Step 3: Cross multiply
    1,183.81x = 1,775.43 × 525.33
  4. Step 4: Simplify right side
    1,183.81x = 932,686.64
  5. Step 5: Solve for x
    x = 932,686.64/1,183.81
  6. Step 6: Final answer
    x = 787.87

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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.