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Finding the Fourth Proportional to 1,091.85, 1,506.78 and 594.51

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Solution

The fourth proportional to 1,091.85, 1,506.78 and 594.51 is: 820.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091.85 : 1,506.78 = 594.51 : x
  2. Step 2: Convert to fraction form
    1,091.85/1,506.78 = 594.51/x
  3. Step 3: Cross multiply
    1,091.85x = 1,506.78 × 594.51
  4. Step 4: Simplify right side
    1,091.85x = 895,790.13
  5. Step 5: Solve for x
    x = 895,790.13/1,091.85
  6. Step 6: Final answer
    x = 820.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.