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Finding the Fourth Proportional to 1,862.64, 2,794.77 and 997.02

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Solution

The fourth proportional to 1,862.64, 2,794.77 and 997.02 is: 1,495.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862.64 : 2,794.77 = 997.02 : x
  2. Step 2: Convert to fraction form
    1,862.64/2,794.77 = 997.02/x
  3. Step 3: Cross multiply
    1,862.64x = 2,794.77 × 997.02
  4. Step 4: Simplify right side
    1,862.64x = 2,786,441.59
  5. Step 5: Solve for x
    x = 2,786,441.59/1,862.64
  6. Step 6: Final answer
    x = 1,495.96

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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.