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Finding the Fourth Proportional to 344,151.62, 516,555.78 and 211,291.37

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Solution

The fourth proportional to 344,151.62, 516,555.78 and 211,291.37 is: 317,138.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,151.62 : 516,555.78 = 211,291.37 : x
  2. Step 2: Convert to fraction form
    344,151.62/516,555.78 = 211,291.37/x
  3. Step 3: Cross multiply
    344,151.62x = 516,555.78 × 211,291.37
  4. Step 4: Simplify right side
    344,151.62x = 109,143,775,854.84
  5. Step 5: Solve for x
    x = 109,143,775,854.84/344,151.62
  6. Step 6: Final answer
    x = 317,138.64

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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.