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Finding the Fourth Proportional to 330,426.25, 455,989.44 and 179,523.25

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Solution

The fourth proportional to 330,426.25, 455,989.44 and 179,523.25 is: 247,742.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,426.25 : 455,989.44 = 179,523.25 : x
  2. Step 2: Convert to fraction form
    330,426.25/455,989.44 = 179,523.25/x
  3. Step 3: Cross multiply
    330,426.25x = 455,989.44 × 179,523.25
  4. Step 4: Simplify right side
    330,426.25x = 81,860,706,234.48
  5. Step 5: Solve for x
    x = 81,860,706,234.48/330,426.25
  6. Step 6: Final answer
    x = 247,742.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.