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Finding the Fourth Proportional to 325,848.80, 488,773.20 and 266,751.20

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Solution

The fourth proportional to 325,848.80, 488,773.20 and 266,751.20 is: 400,126.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,848.80 : 488,773.20 = 266,751.20 : x
  2. Step 2: Convert to fraction form
    325,848.80/488,773.20 = 266,751.20/x
  3. Step 3: Cross multiply
    325,848.80x = 488,773.20 × 266,751.20
  4. Step 4: Simplify right side
    325,848.80x = 130,380,837,627.84
  5. Step 5: Solve for x
    x = 130,380,837,627.84/325,848.80
  6. Step 6: Final answer
    x = 400,126.80

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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.