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Finding the Fourth Proportional to 293,722.60, 440,583.90 and 255,231.40

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Solution

The fourth proportional to 293,722.60, 440,583.90 and 255,231.40 is: 382,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,722.60 : 440,583.90 = 255,231.40 : x
  2. Step 2: Convert to fraction form
    293,722.60/440,583.90 = 255,231.40/x
  3. Step 3: Cross multiply
    293,722.60x = 440,583.90 × 255,231.40
  4. Step 4: Simplify right side
    293,722.60x = 112,450,845,614.46
  5. Step 5: Solve for x
    x = 112,450,845,614.46/293,722.60
  6. Step 6: Final answer
    x = 382,847.10

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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.