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Finding the Fourth Proportional to 1,664.77, 2,297.60 and 966.13

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Solution

The fourth proportional to 1,664.77, 2,297.60 and 966.13 is: 1,333.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664.77 : 2,297.60 = 966.13 : x
  2. Step 2: Convert to fraction form
    1,664.77/2,297.60 = 966.13/x
  3. Step 3: Cross multiply
    1,664.77x = 2,297.60 × 966.13
  4. Step 4: Simplify right side
    1,664.77x = 2,219,780.29
  5. Step 5: Solve for x
    x = 2,219,780.29/1,664.77
  6. Step 6: Final answer
    x = 1,333.39

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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.