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Finding the Fourth Proportional to 2,366.02, 3,548.90 and 978.96

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Solution

The fourth proportional to 2,366.02, 3,548.90 and 978.96 is: 1,468.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,366.02 : 3,548.90 = 978.96 : x
  2. Step 2: Convert to fraction form
    2,366.02/3,548.90 = 978.96/x
  3. Step 3: Cross multiply
    2,366.02x = 3,548.90 × 978.96
  4. Step 4: Simplify right side
    2,366.02x = 3,474,231.14
  5. Step 5: Solve for x
    x = 3,474,231.14/2,366.02
  6. Step 6: Final answer
    x = 1,468.39

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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.