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Finding the Fourth Proportional to 488,474.10, 674,136.18 and 273,658.32

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Solution

The fourth proportional to 488,474.10, 674,136.18 and 273,658.32 is: 377,671.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,474.10 : 674,136.18 = 273,658.32 : x
  2. Step 2: Convert to fraction form
    488,474.10/674,136.18 = 273,658.32/x
  3. Step 3: Cross multiply
    488,474.10x = 674,136.18 × 273,658.32
  4. Step 4: Simplify right side
    488,474.10x = 184,482,974,470.02
  5. Step 5: Solve for x
    x = 184,482,974,470.02/488,474.10
  6. Step 6: Final answer
    x = 377,671.97

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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.