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Finding the Fourth Proportional to 338,041.11, 466,812.78 and 217,391.88

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Solution

The fourth proportional to 338,041.11, 466,812.78 and 217,391.88 is: 300,204.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,041.11 : 466,812.78 = 217,391.88 : x
  2. Step 2: Convert to fraction form
    338,041.11/466,812.78 = 217,391.88/x
  3. Step 3: Cross multiply
    338,041.11x = 466,812.78 × 217,391.88
  4. Step 4: Simplify right side
    338,041.11x = 101,481,307,852.23
  5. Step 5: Solve for x
    x = 101,481,307,852.23/338,041.11
  6. Step 6: Final answer
    x = 300,204.04

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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.