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Finding the Fourth Proportional to 1,059.97, 1,590.17 and 366.67

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Solution

The fourth proportional to 1,059.97, 1,590.17 and 366.67 is: 550.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,059.97 : 1,590.17 = 366.67 : x
  2. Step 2: Convert to fraction form
    1,059.97/1,590.17 = 366.67/x
  3. Step 3: Cross multiply
    1,059.97x = 1,590.17 × 366.67
  4. Step 4: Simplify right side
    1,059.97x = 583,067.63
  5. Step 5: Solve for x
    x = 583,067.63/1,059.97
  6. Step 6: Final answer
    x = 550.08

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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.