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Finding the Fourth Proportional to 488,011.77, 673,456.05 and 273,151.80

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Solution

The fourth proportional to 488,011.77, 673,456.05 and 273,151.80 is: 376,949.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,011.77 : 673,456.05 = 273,151.80 : x
  2. Step 2: Convert to fraction form
    488,011.77/673,456.05 = 273,151.80/x
  3. Step 3: Cross multiply
    488,011.77x = 673,456.05 × 273,151.80
  4. Step 4: Simplify right side
    488,011.77x = 183,955,732,278.39
  5. Step 5: Solve for x
    x = 183,955,732,278.39/488,011.77
  6. Step 6: Final answer
    x = 376,949.38

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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.