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Finding the Fourth Proportional to 293,678.65, 440,518.36 and 80,448.44

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Solution

The fourth proportional to 293,678.65, 440,518.36 and 80,448.44 is: 120,672.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,678.65 : 440,518.36 = 80,448.44 : x
  2. Step 2: Convert to fraction form
    293,678.65/440,518.36 = 80,448.44/x
  3. Step 3: Cross multiply
    293,678.65x = 440,518.36 × 80,448.44
  4. Step 4: Simplify right side
    293,678.65x = 35,439,014,551.68
  5. Step 5: Solve for x
    x = 35,439,014,551.68/293,678.65
  6. Step 6: Final answer
    x = 120,672.76

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1.5x scale

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.