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Finding the Fourth Proportional to 964.84, 1,445.82 and 892.84

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Solution

The fourth proportional to 964.84, 1,445.82 and 892.84 is: 1,337.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    964.84 : 1,445.82 = 892.84 : x
  2. Step 2: Convert to fraction form
    964.84/1,445.82 = 892.84/x
  3. Step 3: Cross multiply
    964.84x = 1,445.82 × 892.84
  4. Step 4: Simplify right side
    964.84x = 1,290,885.93
  5. Step 5: Solve for x
    x = 1,290,885.93/964.84
  6. Step 6: Final answer
    x = 1,337.93

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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.