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Finding the Fourth Proportional to 662,628.33, 994,037.49 and 213,199.83

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Solution

The fourth proportional to 662,628.33, 994,037.49 and 213,199.83 is: 319,830.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,628.33 : 994,037.49 = 213,199.83 : x
  2. Step 2: Convert to fraction form
    662,628.33/994,037.49 = 213,199.83/x
  3. Step 3: Cross multiply
    662,628.33x = 994,037.49 × 213,199.83
  4. Step 4: Simplify right side
    662,628.33x = 211,928,623,881.63
  5. Step 5: Solve for x
    x = 211,928,623,881.63/662,628.33
  6. Step 6: Final answer
    x = 319,830.31

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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.