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Finding the Fourth Proportional to 325,619.70, 488,429.55 and 246,887.70

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Solution

The fourth proportional to 325,619.70, 488,429.55 and 246,887.70 is: 370,331.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,619.70 : 488,429.55 = 246,887.70 : x
  2. Step 2: Convert to fraction form
    325,619.70/488,429.55 = 246,887.70/x
  3. Step 3: Cross multiply
    325,619.70x = 488,429.55 × 246,887.70
  4. Step 4: Simplify right side
    325,619.70x = 120,587,248,211.54
  5. Step 5: Solve for x
    x = 120,587,248,211.54/325,619.70
  6. Step 6: Final answer
    x = 370,331.55

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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.