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Finding the Fourth Proportional to 464.24, 695.34 and 394.98

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Solution

The fourth proportional to 464.24, 695.34 and 394.98 is: 591.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.24 : 695.34 = 394.98 : x
  2. Step 2: Convert to fraction form
    464.24/695.34 = 394.98/x
  3. Step 3: Cross multiply
    464.24x = 695.34 × 394.98
  4. Step 4: Simplify right side
    464.24x = 274,645.39
  5. Step 5: Solve for x
    x = 274,645.39/464.24
  6. Step 6: Final answer
    x = 591.60

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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.