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Finding the Fourth Proportional to 383,304.82, 528,953.38 and 211,238.68

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Solution

The fourth proportional to 383,304.82, 528,953.38 and 211,238.68 is: 291,505.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,304.82 : 528,953.38 = 211,238.68 : x
  2. Step 2: Convert to fraction form
    383,304.82/528,953.38 = 211,238.68/x
  3. Step 3: Cross multiply
    383,304.82x = 528,953.38 × 211,238.68
  4. Step 4: Simplify right side
    383,304.82x = 111,735,413,360.83
  5. Step 5: Solve for x
    x = 111,735,413,360.83/383,304.82
  6. Step 6: Final answer
    x = 291,505.37

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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.