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Finding the Fourth Proportional to 383,947.40, 575,661.90 and 204,062.60

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Solution

The fourth proportional to 383,947.40, 575,661.90 and 204,062.60 is: 305,956.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,947.40 : 575,661.90 = 204,062.60 : x
  2. Step 2: Convert to fraction form
    383,947.40/575,661.90 = 204,062.60/x
  3. Step 3: Cross multiply
    383,947.40x = 575,661.90 × 204,062.60
  4. Step 4: Simplify right side
    383,947.40x = 117,471,064,034.94
  5. Step 5: Solve for x
    x = 117,471,064,034.94/383,947.40
  6. Step 6: Final answer
    x = 305,956.14

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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.