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Finding the Fourth Proportional to 2,264.69, 3,396.99 and 621.23

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Solution

The fourth proportional to 2,264.69, 3,396.99 and 621.23 is: 931.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,264.69 : 3,396.99 = 621.23 : x
  2. Step 2: Convert to fraction form
    2,264.69/3,396.99 = 621.23/x
  3. Step 3: Cross multiply
    2,264.69x = 3,396.99 × 621.23
  4. Step 4: Simplify right side
    2,264.69x = 2,110,312.10
  5. Step 5: Solve for x
    x = 2,110,312.10/2,264.69
  6. Step 6: Final answer
    x = 931.83

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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.