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Finding the Fourth Proportional to 293,794.45, 402,795.90 and 288,480.04

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Solution

The fourth proportional to 293,794.45, 402,795.90 and 288,480.04 is: 395,509.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,794.45 : 402,795.90 = 288,480.04 : x
  2. Step 2: Convert to fraction form
    293,794.45/402,795.90 = 288,480.04/x
  3. Step 3: Cross multiply
    293,794.45x = 402,795.90 × 288,480.04
  4. Step 4: Simplify right side
    293,794.45x = 116,198,576,336.85
  5. Step 5: Solve for x
    x = 116,198,576,336.85/293,794.45
  6. Step 6: Final answer
    x = 395,509.78

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.