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Finding the Fourth Proportional to 966.84, 1,449.86 and 528.46

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Solution

The fourth proportional to 966.84, 1,449.86 and 528.46 is: 792.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    966.84 : 1,449.86 = 528.46 : x
  2. Step 2: Convert to fraction form
    966.84/1,449.86 = 528.46/x
  3. Step 3: Cross multiply
    966.84x = 1,449.86 × 528.46
  4. Step 4: Simplify right side
    966.84x = 766,193.02
  5. Step 5: Solve for x
    x = 766,193.02/966.84
  6. Step 6: Final answer
    x = 792.47

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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.