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Finding the Fourth Proportional to 574,786.30, 793,145.49 and 353,988.64

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Solution

The fourth proportional to 574,786.30, 793,145.49 and 353,988.64 is: 488,467.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,786.30 : 793,145.49 = 353,988.64 : x
  2. Step 2: Convert to fraction form
    574,786.30/793,145.49 = 353,988.64/x
  3. Step 3: Cross multiply
    574,786.30x = 793,145.49 × 353,988.64
  4. Step 4: Simplify right side
    574,786.30x = 280,764,493,327.23
  5. Step 5: Solve for x
    x = 280,764,493,327.23/574,786.30
  6. Step 6: Final answer
    x = 488,467.62

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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.