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Finding the Fourth Proportional to 2,959.01, 4,438.94 and 983.97

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Solution

The fourth proportional to 2,959.01, 4,438.94 and 983.97 is: 1,476.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,959.01 : 4,438.94 = 983.97 : x
  2. Step 2: Convert to fraction form
    2,959.01/4,438.94 = 983.97/x
  3. Step 3: Cross multiply
    2,959.01x = 4,438.94 × 983.97
  4. Step 4: Simplify right side
    2,959.01x = 4,367,783.79
  5. Step 5: Solve for x
    x = 4,367,783.79/2,959.01
  6. Step 6: Final answer
    x = 1,476.10

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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.