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Finding the Fourth Proportional to 999.84, 1,497.44 and 965.24

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Solution

The fourth proportional to 999.84, 1,497.44 and 965.24 is: 1,445.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    999.84 : 1,497.44 = 965.24 : x
  2. Step 2: Convert to fraction form
    999.84/1,497.44 = 965.24/x
  3. Step 3: Cross multiply
    999.84x = 1,497.44 × 965.24
  4. Step 4: Simplify right side
    999.84x = 1,445,388.99
  5. Step 5: Solve for x
    x = 1,445,388.99/999.84
  6. Step 6: Final answer
    x = 1,445.62

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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.