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Finding the Fourth Proportional to 2,926.99, 4,390.49 and 735.72

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Solution

The fourth proportional to 2,926.99, 4,390.49 and 735.72 is: 1,103.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,926.99 : 4,390.49 = 735.72 : x
  2. Step 2: Convert to fraction form
    2,926.99/4,390.49 = 735.72/x
  3. Step 3: Cross multiply
    2,926.99x = 4,390.49 × 735.72
  4. Step 4: Simplify right side
    2,926.99x = 3,230,174.17
  5. Step 5: Solve for x
    x = 3,230,174.17/2,926.99
  6. Step 6: Final answer
    x = 1,103.58

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1.5x scale

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.