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Finding the Fourth Proportional to 462.33, 692.90 and 188.10

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Solution

The fourth proportional to 462.33, 692.90 and 188.10 is: 281.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.33 : 692.90 = 188.10 : x
  2. Step 2: Convert to fraction form
    462.33/692.90 = 188.10/x
  3. Step 3: Cross multiply
    462.33x = 692.90 × 188.10
  4. Step 4: Simplify right side
    462.33x = 130,335.28
  5. Step 5: Solve for x
    x = 130,335.28/462.33
  6. Step 6: Final answer
    x = 281.91

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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.