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Finding the Fourth Proportional to 527.96, 792.62 and 281.46

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Solution

The fourth proportional to 527.96, 792.62 and 281.46 is: 422.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.96 : 792.62 = 281.46 : x
  2. Step 2: Convert to fraction form
    527.96/792.62 = 281.46/x
  3. Step 3: Cross multiply
    527.96x = 792.62 × 281.46
  4. Step 4: Simplify right side
    527.96x = 223,090.83
  5. Step 5: Solve for x
    x = 223,090.83/527.96
  6. Step 6: Final answer
    x = 422.55

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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.