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Finding the Fourth Proportional to 325,676.09, 488,394.18 and 112,389.59

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Solution

The fourth proportional to 325,676.09, 488,394.18 and 112,389.59 is: 168,542.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,676.09 : 488,394.18 = 112,389.59 : x
  2. Step 2: Convert to fraction form
    325,676.09/488,394.18 = 112,389.59/x
  3. Step 3: Cross multiply
    325,676.09x = 488,394.18 × 112,389.59
  4. Step 4: Simplify right side
    325,676.09x = 54,890,419,206.62
  5. Step 5: Solve for x
    x = 54,890,419,206.62/325,676.09
  6. Step 6: Final answer
    x = 168,542.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.