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Finding the Fourth Proportional to 1,166.07, 1,608.77 and 746.66

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Solution

The fourth proportional to 1,166.07, 1,608.77 and 746.66 is: 1,030.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.07 : 1,608.77 = 746.66 : x
  2. Step 2: Convert to fraction form
    1,166.07/1,608.77 = 746.66/x
  3. Step 3: Cross multiply
    1,166.07x = 1,608.77 × 746.66
  4. Step 4: Simplify right side
    1,166.07x = 1,201,192.43
  5. Step 5: Solve for x
    x = 1,201,192.43/1,166.07
  6. Step 6: Final answer
    x = 1,030.12

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Half scale
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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.