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Finding the Fourth Proportional to 441,034.70, 660,961.56 and 216,050.72

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Solution

The fourth proportional to 441,034.70, 660,961.56 and 216,050.72 is: 323,786.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,034.70 : 660,961.56 = 216,050.72 : x
  2. Step 2: Convert to fraction form
    441,034.70/660,961.56 = 216,050.72/x
  3. Step 3: Cross multiply
    441,034.70x = 660,961.56 × 216,050.72
  4. Step 4: Simplify right side
    441,034.70x = 142,801,220,930.32
  5. Step 5: Solve for x
    x = 142,801,220,930.32/441,034.70
  6. Step 6: Final answer
    x = 323,786.82

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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.