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Finding the Fourth Proportional to 321,633.06, 443,853.92 and 178,393.11

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Solution

The fourth proportional to 321,633.06, 443,853.92 and 178,393.11 is: 246,182.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,633.06 : 443,853.92 = 178,393.11 : x
  2. Step 2: Convert to fraction form
    321,633.06/443,853.92 = 178,393.11/x
  3. Step 3: Cross multiply
    321,633.06x = 443,853.92 × 178,393.11
  4. Step 4: Simplify right side
    321,633.06x = 79,180,480,282.53
  5. Step 5: Solve for x
    x = 79,180,480,282.53/321,633.06
  6. Step 6: Final answer
    x = 246,182.65

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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.