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Finding the Fourth Proportional to 465.96, 698.88 and 192

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Solution

The fourth proportional to 465.96, 698.88 and 192 is: 287.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    465.96 : 698.88 = 192 : x
  2. Step 2: Convert to fraction form
    465.96/698.88 = 192/x
  3. Step 3: Cross multiply
    465.96x = 698.88 × 192
  4. Step 4: Simplify right side
    465.96x = 134,184.96
  5. Step 5: Solve for x
    x = 134,184.96/465.96
  6. Step 6: Final answer
    x = 287.98

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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.