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Finding the Fourth Proportional to 493,515.55, 681,053.63 and 267,161.05

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Solution

The fourth proportional to 493,515.55, 681,053.63 and 267,161.05 is: 368,683.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,515.55 : 681,053.63 = 267,161.05 : x
  2. Step 2: Convert to fraction form
    493,515.55/681,053.63 = 267,161.05/x
  3. Step 3: Cross multiply
    493,515.55x = 681,053.63 × 267,161.05
  4. Step 4: Simplify right side
    493,515.55x = 181,951,003,565.01
  5. Step 5: Solve for x
    x = 181,951,003,565.01/493,515.55
  6. Step 6: Final answer
    x = 368,683.43

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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.