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Finding the Fourth Proportional to 322,480.44, 484,420.50 and 272,660.58

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Solution

The fourth proportional to 322,480.44, 484,420.50 and 272,660.58 is: 409,582.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,480.44 : 484,420.50 = 272,660.58 : x
  2. Step 2: Convert to fraction form
    322,480.44/484,420.50 = 272,660.58/x
  3. Step 3: Cross multiply
    322,480.44x = 484,420.50 × 272,660.58
  4. Step 4: Simplify right side
    322,480.44x = 132,082,374,493.89
  5. Step 5: Solve for x
    x = 132,082,374,493.89/322,480.44
  6. Step 6: Final answer
    x = 409,582.59

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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.