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Finding the Fourth Proportional to 325,937.76, 488,806.55 and 225,381.90

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Solution

The fourth proportional to 325,937.76, 488,806.55 and 225,381.90 is: 338,003.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,937.76 : 488,806.55 = 225,381.90 : x
  2. Step 2: Convert to fraction form
    325,937.76/488,806.55 = 225,381.90/x
  3. Step 3: Cross multiply
    325,937.76x = 488,806.55 × 225,381.90
  4. Step 4: Simplify right side
    325,937.76x = 110,168,148,971.45
  5. Step 5: Solve for x
    x = 110,168,148,971.45/325,937.76
  6. Step 6: Final answer
    x = 338,003.64

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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.