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Finding the Fourth Proportional to 1,166.25, 1,749.93 and 581.24

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Solution

The fourth proportional to 1,166.25, 1,749.93 and 581.24 is: 872.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.25 : 1,749.93 = 581.24 : x
  2. Step 2: Convert to fraction form
    1,166.25/1,749.93 = 581.24/x
  3. Step 3: Cross multiply
    1,166.25x = 1,749.93 × 581.24
  4. Step 4: Simplify right side
    1,166.25x = 1,017,120.56
  5. Step 5: Solve for x
    x = 1,017,120.56/1,166.25
  6. Step 6: Final answer
    x = 872.13

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Half scale
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1.5x scale

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.