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Finding the Fourth Proportional to 912, 1,367.46 and 473.25

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Solution

The fourth proportional to 912, 1,367.46 and 473.25 is: 709.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    912 : 1,367.46 = 473.25 : x
  2. Step 2: Convert to fraction form
    912/1,367.46 = 473.25/x
  3. Step 3: Cross multiply
    912x = 1,367.46 × 473.25
  4. Step 4: Simplify right side
    912x = 647,150.45
  5. Step 5: Solve for x
    x = 647,150.45/912
  6. Step 6: Final answer
    x = 709.59

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Double scale
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Similar ratio
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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.