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Finding the Fourth Proportional to 488,631.33, 674,299.49 and 273,780.45

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Solution

The fourth proportional to 488,631.33, 674,299.49 and 273,780.45 is: 377,810.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,631.33 : 674,299.49 = 273,780.45 : x
  2. Step 2: Convert to fraction form
    488,631.33/674,299.49 = 273,780.45/x
  3. Step 3: Cross multiply
    488,631.33x = 674,299.49 × 273,780.45
  4. Step 4: Simplify right side
    488,631.33x = 184,610,016,438.07
  5. Step 5: Solve for x
    x = 184,610,016,438.07/488,631.33
  6. Step 6: Final answer
    x = 377,810.44

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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.