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Finding the Fourth Proportional to 465, 697.41 and 204.96

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Solution

The fourth proportional to 465, 697.41 and 204.96 is: 307.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    465 : 697.41 = 204.96 : x
  2. Step 2: Convert to fraction form
    465/697.41 = 204.96/x
  3. Step 3: Cross multiply
    465x = 697.41 × 204.96
  4. Step 4: Simplify right side
    465x = 142,941.15
  5. Step 5: Solve for x
    x = 142,941.15/465
  6. Step 6: Final answer
    x = 307.40

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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.