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Finding the Fourth Proportional to 325,928.40, 488,309.40 and 275,773.20

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Solution

The fourth proportional to 325,928.40, 488,309.40 and 275,773.20 is: 413,166.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,928.40 : 488,309.40 = 275,773.20 : x
  2. Step 2: Convert to fraction form
    325,928.40/488,309.40 = 275,773.20/x
  3. Step 3: Cross multiply
    325,928.40x = 488,309.40 × 275,773.20
  4. Step 4: Simplify right side
    325,928.40x = 134,662,645,828.08
  5. Step 5: Solve for x
    x = 134,662,645,828.08/325,928.40
  6. Step 6: Final answer
    x = 413,166.35

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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.