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Finding the Fourth Proportional to 466.16, 698.22 and 260.15

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Solution

The fourth proportional to 466.16, 698.22 and 260.15 is: 389.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    466.16 : 698.22 = 260.15 : x
  2. Step 2: Convert to fraction form
    466.16/698.22 = 260.15/x
  3. Step 3: Cross multiply
    466.16x = 698.22 × 260.15
  4. Step 4: Simplify right side
    466.16x = 181,638.44
  5. Step 5: Solve for x
    x = 181,638.44/466.16
  6. Step 6: Final answer
    x = 389.65

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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.