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Finding the Fourth Proportional to 488,008.72, 673,451.85 and 273,148.73

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Solution

The fourth proportional to 488,008.72, 673,451.85 and 273,148.73 is: 376,945.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,008.72 : 673,451.85 = 273,148.73 : x
  2. Step 2: Convert to fraction form
    488,008.72/673,451.85 = 273,148.73/x
  3. Step 3: Cross multiply
    488,008.72x = 673,451.85 × 273,148.73
  4. Step 4: Simplify right side
    488,008.72x = 183,952,517,543.65
  5. Step 5: Solve for x
    x = 183,952,517,543.65/488,008.72
  6. Step 6: Final answer
    x = 376,945.14

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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.