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Finding the Fourth Proportional to 488,735.29, 674,472.90 and 273,867.40

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Solution

The fourth proportional to 488,735.29, 674,472.90 and 273,867.40 is: 377,947.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,735.29 : 674,472.90 = 273,867.40 : x
  2. Step 2: Convert to fraction form
    488,735.29/674,472.90 = 273,867.40/x
  3. Step 3: Cross multiply
    488,735.29x = 674,472.90 × 273,867.40
  4. Step 4: Simplify right side
    488,735.29x = 184,716,139,493.46
  5. Step 5: Solve for x
    x = 184,716,139,493.46/488,735.29
  6. Step 6: Final answer
    x = 377,947.21

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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.