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Finding the Fourth Proportional to 404,030.87, 606,224.84 and 211,859.42

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Solution

The fourth proportional to 404,030.87, 606,224.84 and 211,859.42 is: 317,882.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,030.87 : 606,224.84 = 211,859.42 : x
  2. Step 2: Convert to fraction form
    404,030.87/606,224.84 = 211,859.42/x
  3. Step 3: Cross multiply
    404,030.87x = 606,224.84 × 211,859.42
  4. Step 4: Simplify right side
    404,030.87x = 128,434,438,901.57
  5. Step 5: Solve for x
    x = 128,434,438,901.57/404,030.87
  6. Step 6: Final answer
    x = 317,882.74

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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.