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Finding the Fourth Proportional to 355,217.69, 532,367.25 and 265,769.39

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Solution

The fourth proportional to 355,217.69, 532,367.25 and 265,769.39 is: 398,310.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,217.69 : 532,367.25 = 265,769.39 : x
  2. Step 2: Convert to fraction form
    355,217.69/532,367.25 = 265,769.39/x
  3. Step 3: Cross multiply
    355,217.69x = 532,367.25 × 265,769.39
  4. Step 4: Simplify right side
    355,217.69x = 141,486,916,626.64
  5. Step 5: Solve for x
    x = 141,486,916,626.64/355,217.69
  6. Step 6: Final answer
    x = 398,310.45

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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.