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Finding the Fourth Proportional to 321,852.54, 444,156.75 and 178,612.68

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Solution

The fourth proportional to 321,852.54, 444,156.75 and 178,612.68 is: 246,485.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,852.54 : 444,156.75 = 178,612.68 : x
  2. Step 2: Convert to fraction form
    321,852.54/444,156.75 = 178,612.68/x
  3. Step 3: Cross multiply
    321,852.54x = 444,156.75 × 178,612.68
  4. Step 4: Simplify right side
    321,852.54x = 79,332,027,457.59
  5. Step 5: Solve for x
    x = 79,332,027,457.59/321,852.54
  6. Step 6: Final answer
    x = 246,485.63

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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.