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Finding the Fourth Proportional to 667.05, 1,000.01 and 462.02

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Solution

The fourth proportional to 667.05, 1,000.01 and 462.02 is: 692.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    667.05 : 1,000.01 = 462.02 : x
  2. Step 2: Convert to fraction form
    667.05/1,000.01 = 462.02/x
  3. Step 3: Cross multiply
    667.05x = 1,000.01 × 462.02
  4. Step 4: Simplify right side
    667.05x = 462,020.78
  5. Step 5: Solve for x
    x = 462,020.78/667.05
  6. Step 6: Final answer
    x = 692.64

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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.