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Finding the Fourth Proportional to 293,992.80, 440,989.20 and 252,002.40

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Solution

The fourth proportional to 293,992.80, 440,989.20 and 252,002.40 is: 378,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,992.80 : 440,989.20 = 252,002.40 : x
  2. Step 2: Convert to fraction form
    293,992.80/440,989.20 = 252,002.40/x
  3. Step 3: Cross multiply
    293,992.80x = 440,989.20 × 252,002.40
  4. Step 4: Simplify right side
    293,992.80x = 111,130,336,774.08
  5. Step 5: Solve for x
    x = 111,130,336,774.08/293,992.80
  6. Step 6: Final answer
    x = 378,003.60

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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.