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Finding the Fourth Proportional to 2,993.96, 4,490.87 and 802.68

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Solution

The fourth proportional to 2,993.96, 4,490.87 and 802.68 is: 1,204.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,993.96 : 4,490.87 = 802.68 : x
  2. Step 2: Convert to fraction form
    2,993.96/4,490.87 = 802.68/x
  3. Step 3: Cross multiply
    2,993.96x = 4,490.87 × 802.68
  4. Step 4: Simplify right side
    2,993.96x = 3,604,731.53
  5. Step 5: Solve for x
    x = 3,604,731.53/2,993.96
  6. Step 6: Final answer
    x = 1,204.00

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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.