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Finding the Fourth Proportional to 1,166.10, 1,609 and 944.67

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Solution

The fourth proportional to 1,166.10, 1,609 and 944.67 is: 1,303.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.10 : 1,609 = 944.67 : x
  2. Step 2: Convert to fraction form
    1,166.10/1,609 = 944.67/x
  3. Step 3: Cross multiply
    1,166.10x = 1,609 × 944.67
  4. Step 4: Simplify right side
    1,166.10x = 1,519,974.03
  5. Step 5: Solve for x
    x = 1,519,974.03/1,166.10
  6. Step 6: Final answer
    x = 1,303.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.