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Finding the Fourth Proportional to 667,183.32, 920,714.71 and 361,263.33

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Solution

The fourth proportional to 667,183.32, 920,714.71 and 361,263.33 is: 498,544.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,183.32 : 920,714.71 = 361,263.33 : x
  2. Step 2: Convert to fraction form
    667,183.32/920,714.71 = 361,263.33/x
  3. Step 3: Cross multiply
    667,183.32x = 920,714.71 × 361,263.33
  4. Step 4: Simplify right side
    667,183.32x = 332,620,462,114.58
  5. Step 5: Solve for x
    x = 332,620,462,114.58/667,183.32
  6. Step 6: Final answer
    x = 498,544.33

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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.