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Finding the Fourth Proportional to 1,005.08, 1,496.64 and 968.18

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Solution

The fourth proportional to 1,005.08, 1,496.64 and 968.18 is: 1,441.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005.08 : 1,496.64 = 968.18 : x
  2. Step 2: Convert to fraction form
    1,005.08/1,496.64 = 968.18/x
  3. Step 3: Cross multiply
    1,005.08x = 1,496.64 × 968.18
  4. Step 4: Simplify right side
    1,005.08x = 1,449,016.92
  5. Step 5: Solve for x
    x = 1,449,016.92/1,005.08
  6. Step 6: Final answer
    x = 1,441.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.