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Finding the Fourth Proportional to 1,044.96, 1,567.52 and 395.84

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Solution

The fourth proportional to 1,044.96, 1,567.52 and 395.84 is: 593.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.96 : 1,567.52 = 395.84 : x
  2. Step 2: Convert to fraction form
    1,044.96/1,567.52 = 395.84/x
  3. Step 3: Cross multiply
    1,044.96x = 1,567.52 × 395.84
  4. Step 4: Simplify right side
    1,044.96x = 620,487.12
  5. Step 5: Solve for x
    x = 620,487.12/1,044.96
  6. Step 6: Final answer
    x = 593.79

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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.