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Finding the Fourth Proportional to 487,738.81, 673,105.67 and 272,865.97

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Solution

The fourth proportional to 487,738.81, 673,105.67 and 272,865.97 is: 376,569.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,738.81 : 673,105.67 = 272,865.97 : x
  2. Step 2: Convert to fraction form
    487,738.81/673,105.67 = 272,865.97/x
  3. Step 3: Cross multiply
    487,738.81x = 673,105.67 × 272,865.97
  4. Step 4: Simplify right side
    487,738.81x = 183,667,630,192.72
  5. Step 5: Solve for x
    x = 183,667,630,192.72/487,738.81
  6. Step 6: Final answer
    x = 376,569.64

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.