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Finding the Fourth Proportional to 488,396.82, 673,772.92 and 294,696.49

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Solution

The fourth proportional to 488,396.82, 673,772.92 and 294,696.49 is: 406,551.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,396.82 : 673,772.92 = 294,696.49 : x
  2. Step 2: Convert to fraction form
    488,396.82/673,772.92 = 294,696.49/x
  3. Step 3: Cross multiply
    488,396.82x = 673,772.92 × 294,696.49
  4. Step 4: Simplify right side
    488,396.82x = 198,558,513,423.20
  5. Step 5: Solve for x
    x = 198,558,513,423.20/488,396.82
  6. Step 6: Final answer
    x = 406,551.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.