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Finding the Fourth Proportional to 355,219.68, 532,370.24 and 265,771.38

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Solution

The fourth proportional to 355,219.68, 532,370.24 and 265,771.38 is: 398,313.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,219.68 : 532,370.24 = 265,771.38 : x
  2. Step 2: Convert to fraction form
    355,219.68/532,370.24 = 265,771.38/x
  3. Step 3: Cross multiply
    355,219.68x = 532,370.24 × 265,771.38
  4. Step 4: Simplify right side
    355,219.68x = 141,488,773,355.73
  5. Step 5: Solve for x
    x = 141,488,773,355.73/355,219.68
  6. Step 6: Final answer
    x = 398,313.44

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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.