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Finding the Fourth Proportional to 1,183.68, 1,776.06 and 534.60

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Solution

The fourth proportional to 1,183.68, 1,776.06 and 534.60 is: 802.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,183.68 : 1,776.06 = 534.60 : x
  2. Step 2: Convert to fraction form
    1,183.68/1,776.06 = 534.60/x
  3. Step 3: Cross multiply
    1,183.68x = 1,776.06 × 534.60
  4. Step 4: Simplify right side
    1,183.68x = 949,481.68
  5. Step 5: Solve for x
    x = 949,481.68/1,183.68
  6. Step 6: Final answer
    x = 802.14

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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.