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Finding the Fourth Proportional to 1,048.14, 1,571.85 and 469.98

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Solution

The fourth proportional to 1,048.14, 1,571.85 and 469.98 is: 704.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048.14 : 1,571.85 = 469.98 : x
  2. Step 2: Convert to fraction form
    1,048.14/1,571.85 = 469.98/x
  3. Step 3: Cross multiply
    1,048.14x = 1,571.85 × 469.98
  4. Step 4: Simplify right side
    1,048.14x = 738,738.06
  5. Step 5: Solve for x
    x = 738,738.06/1,048.14
  6. Step 6: Final answer
    x = 704.81

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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.