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Finding the Fourth Proportional to 325,451.51, 449,084.68 and 187,628.89

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Solution

The fourth proportional to 325,451.51, 449,084.68 and 187,628.89 is: 258,905.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,451.51 : 449,084.68 = 187,628.89 : x
  2. Step 2: Convert to fraction form
    325,451.51/449,084.68 = 187,628.89/x
  3. Step 3: Cross multiply
    325,451.51x = 449,084.68 × 187,628.89
  4. Step 4: Simplify right side
    325,451.51x = 84,261,260,024.41
  5. Step 5: Solve for x
    x = 84,261,260,024.41/325,451.51
  6. Step 6: Final answer
    x = 258,905.73

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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.