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Finding the Fourth Proportional to 585,758.12, 808,335.47 and 331,109.30

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Solution

The fourth proportional to 585,758.12, 808,335.47 and 331,109.30 is: 456,924.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,758.12 : 808,335.47 = 331,109.30 : x
  2. Step 2: Convert to fraction form
    585,758.12/808,335.47 = 331,109.30/x
  3. Step 3: Cross multiply
    585,758.12x = 808,335.47 × 331,109.30
  4. Step 4: Simplify right side
    585,758.12x = 267,647,394,485.48
  5. Step 5: Solve for x
    x = 267,647,394,485.48/585,758.12
  6. Step 6: Final answer
    x = 456,924.77

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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.