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Finding the Fourth Proportional to 1,014.78, 1,521.26 and 466.68

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Solution

The fourth proportional to 1,014.78, 1,521.26 and 466.68 is: 699.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,014.78 : 1,521.26 = 466.68 : x
  2. Step 2: Convert to fraction form
    1,014.78/1,521.26 = 466.68/x
  3. Step 3: Cross multiply
    1,014.78x = 1,521.26 × 466.68
  4. Step 4: Simplify right side
    1,014.78x = 709,939.28
  5. Step 5: Solve for x
    x = 709,939.28/1,014.78
  6. Step 6: Final answer
    x = 699.60

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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.