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Finding the Fourth Proportional to 303,064.80, 453,722.40 and 268,072.80

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Solution

The fourth proportional to 303,064.80, 453,722.40 and 268,072.80 is: 401,335.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,064.80 : 453,722.40 = 268,072.80 : x
  2. Step 2: Convert to fraction form
    303,064.80/453,722.40 = 268,072.80/x
  3. Step 3: Cross multiply
    303,064.80x = 453,722.40 × 268,072.80
  4. Step 4: Simplify right side
    303,064.80x = 121,630,634,190.72
  5. Step 5: Solve for x
    x = 121,630,634,190.72/303,064.80
  6. Step 6: Final answer
    x = 401,335.40

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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.