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Finding the Fourth Proportional to 587,806.29, 881,959.08 and 321,255.39

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Solution

The fourth proportional to 587,806.29, 881,959.08 and 321,255.39 is: 482,019.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,806.29 : 881,959.08 = 321,255.39 : x
  2. Step 2: Convert to fraction form
    587,806.29/881,959.08 = 321,255.39/x
  3. Step 3: Cross multiply
    587,806.29x = 881,959.08 × 321,255.39
  4. Step 4: Simplify right side
    587,806.29x = 283,334,108,209.44
  5. Step 5: Solve for x
    x = 283,334,108,209.44/587,806.29
  6. Step 6: Final answer
    x = 482,019.52

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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.