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Finding the Fourth Proportional to 1,175.48, 1,622.22 and 671.48

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Solution

The fourth proportional to 1,175.48, 1,622.22 and 671.48 is: 926.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175.48 : 1,622.22 = 671.48 : x
  2. Step 2: Convert to fraction form
    1,175.48/1,622.22 = 671.48/x
  3. Step 3: Cross multiply
    1,175.48x = 1,622.22 × 671.48
  4. Step 4: Simplify right side
    1,175.48x = 1,089,288.29
  5. Step 5: Solve for x
    x = 1,089,288.29/1,175.48
  6. Step 6: Final answer
    x = 926.68

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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.