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Finding the Fourth Proportional to 998.84, 1,495.95 and 964.24

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Solution

The fourth proportional to 998.84, 1,495.95 and 964.24 is: 1,444.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    998.84 : 1,495.95 = 964.24 : x
  2. Step 2: Convert to fraction form
    998.84/1,495.95 = 964.24/x
  3. Step 3: Cross multiply
    998.84x = 1,495.95 × 964.24
  4. Step 4: Simplify right side
    998.84x = 1,442,447.47
  5. Step 5: Solve for x
    x = 1,442,447.47/998.84
  6. Step 6: Final answer
    x = 1,444.12

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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.