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Finding the Fourth Proportional to 1,014.70, 1,521.60 and 466.60

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Solution

The fourth proportional to 1,014.70, 1,521.60 and 466.60 is: 699.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,014.70 : 1,521.60 = 466.60 : x
  2. Step 2: Convert to fraction form
    1,014.70/1,521.60 = 466.60/x
  3. Step 3: Cross multiply
    1,014.70x = 1,521.60 × 466.60
  4. Step 4: Simplify right side
    1,014.70x = 709,978.56
  5. Step 5: Solve for x
    x = 709,978.56/1,014.70
  6. Step 6: Final answer
    x = 699.69

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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.