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Finding the Fourth Proportional to 1,466.61, 2,199.90 and 492.69

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Solution

The fourth proportional to 1,466.61, 2,199.90 and 492.69 is: 739.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,466.61 : 2,199.90 = 492.69 : x
  2. Step 2: Convert to fraction form
    1,466.61/2,199.90 = 492.69/x
  3. Step 3: Cross multiply
    1,466.61x = 2,199.90 × 492.69
  4. Step 4: Simplify right side
    1,466.61x = 1,083,868.73
  5. Step 5: Solve for x
    x = 1,083,868.73/1,466.61
  6. Step 6: Final answer
    x = 739.03

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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.