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Finding the Fourth Proportional to 1,924.16, 2,884.50 and 998.64

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Solution

The fourth proportional to 1,924.16, 2,884.50 and 998.64 is: 1,497.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,924.16 : 2,884.50 = 998.64 : x
  2. Step 2: Convert to fraction form
    1,924.16/2,884.50 = 998.64/x
  3. Step 3: Cross multiply
    1,924.16x = 2,884.50 × 998.64
  4. Step 4: Simplify right side
    1,924.16x = 2,880,567.37
  5. Step 5: Solve for x
    x = 2,880,567.37/1,924.16
  6. Step 6: Final answer
    x = 1,497.05

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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.