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Finding the Fourth Proportional to 493,993.76, 681,714.23 and 267,639.26

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Solution

The fourth proportional to 493,993.76, 681,714.23 and 267,639.26 is: 369,343.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,993.76 : 681,714.23 = 267,639.26 : x
  2. Step 2: Convert to fraction form
    493,993.76/681,714.23 = 267,639.26/x
  3. Step 3: Cross multiply
    493,993.76x = 681,714.23 × 267,639.26
  4. Step 4: Simplify right side
    493,993.76x = 182,453,487,301.90
  5. Step 5: Solve for x
    x = 182,453,487,301.90/493,993.76
  6. Step 6: Final answer
    x = 369,343.71

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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.