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Finding the Fourth Proportional to 1,197.01, 1,651.44 and 754.75

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Solution

The fourth proportional to 1,197.01, 1,651.44 and 754.75 is: 1,041.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197.01 : 1,651.44 = 754.75 : x
  2. Step 2: Convert to fraction form
    1,197.01/1,651.44 = 754.75/x
  3. Step 3: Cross multiply
    1,197.01x = 1,651.44 × 754.75
  4. Step 4: Simplify right side
    1,197.01x = 1,246,424.34
  5. Step 5: Solve for x
    x = 1,246,424.34/1,197.01
  6. Step 6: Final answer
    x = 1,041.28

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Half scale
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Double 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.