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Finding the Fourth Proportional to 338,847.21, 467,609.45 and 187,944.21

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Solution

The fourth proportional to 338,847.21, 467,609.45 and 187,944.21 is: 259,363.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,847.21 : 467,609.45 = 187,944.21 : x
  2. Step 2: Convert to fraction form
    338,847.21/467,609.45 = 187,944.21/x
  3. Step 3: Cross multiply
    338,847.21x = 467,609.45 × 187,944.21
  4. Step 4: Simplify right side
    338,847.21x = 87,884,487,729.06
  5. Step 5: Solve for x
    x = 87,884,487,729.06/338,847.21
  6. Step 6: Final answer
    x = 259,363.17

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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.