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Finding the Fourth Proportional to 325,816.80, 488,494.80 and 148,408.80

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Solution

The fourth proportional to 325,816.80, 488,494.80 and 148,408.80 is: 222,508.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,816.80 : 488,494.80 = 148,408.80 : x
  2. Step 2: Convert to fraction form
    325,816.80/488,494.80 = 148,408.80/x
  3. Step 3: Cross multiply
    325,816.80x = 488,494.80 × 148,408.80
  4. Step 4: Simplify right side
    325,816.80x = 72,496,927,074.24
  5. Step 5: Solve for x
    x = 72,496,927,074.24/325,816.80
  6. Step 6: Final answer
    x = 222,508.25

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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.