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Finding the Fourth Proportional to 338,857.12, 467,610.88 and 187,968.16

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Solution

The fourth proportional to 338,857.12, 467,610.88 and 187,968.16 is: 259,389.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,857.12 : 467,610.88 = 187,968.16 : x
  2. Step 2: Convert to fraction form
    338,857.12/467,610.88 = 187,968.16/x
  3. Step 3: Cross multiply
    338,857.12x = 467,610.88 × 187,968.16
  4. Step 4: Simplify right side
    338,857.12x = 87,895,956,709.58
  5. Step 5: Solve for x
    x = 87,895,956,709.58/338,857.12
  6. Step 6: Final answer
    x = 259,389.43

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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.