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Finding the Fourth Proportional to 1,566.61, 2,163.11 and 1,234.44

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Solution

The fourth proportional to 1,566.61, 2,163.11 and 1,234.44 is: 1,704.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,566.61 : 2,163.11 = 1,234.44 : x
  2. Step 2: Convert to fraction form
    1,566.61/2,163.11 = 1,234.44/x
  3. Step 3: Cross multiply
    1,566.61x = 2,163.11 × 1,234.44
  4. Step 4: Simplify right side
    1,566.61x = 2,670,223.34
  5. Step 5: Solve for x
    x = 2,670,223.34/1,566.61
  6. Step 6: Final answer
    x = 1,704.46

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1.5x scale

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.