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Finding the Fourth Proportional to 321,902.76, 444,189.78 and 178,668.84

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Solution

The fourth proportional to 321,902.76, 444,189.78 and 178,668.84 is: 246,543.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,902.76 : 444,189.78 = 178,668.84 : x
  2. Step 2: Convert to fraction form
    321,902.76/444,189.78 = 178,668.84/x
  3. Step 3: Cross multiply
    321,902.76x = 444,189.78 × 178,668.84
  4. Step 4: Simplify right side
    321,902.76x = 79,362,872,732.46
  5. Step 5: Solve for x
    x = 79,362,872,732.46/321,902.76
  6. Step 6: Final answer
    x = 246,543.00

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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.