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Finding the Fourth Proportional to 1,166.53, 1,749.90 and 300.84

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Solution

The fourth proportional to 1,166.53, 1,749.90 and 300.84 is: 451.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.53 : 1,749.90 = 300.84 : x
  2. Step 2: Convert to fraction form
    1,166.53/1,749.90 = 300.84/x
  3. Step 3: Cross multiply
    1,166.53x = 1,749.90 × 300.84
  4. Step 4: Simplify right side
    1,166.53x = 526,445.91
  5. Step 5: Solve for x
    x = 526,445.91/1,166.53
  6. Step 6: Final answer
    x = 451.29

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Double scale
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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.