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Finding the Fourth Proportional to 494,545.67, 682,509.66 and 276,776.16

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Solution

The fourth proportional to 494,545.67, 682,509.66 and 276,776.16 is: 381,971.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,545.67 : 682,509.66 = 276,776.16 : x
  2. Step 2: Convert to fraction form
    494,545.67/682,509.66 = 276,776.16/x
  3. Step 3: Cross multiply
    494,545.67x = 682,509.66 × 276,776.16
  4. Step 4: Simplify right side
    494,545.67x = 188,902,402,857.71
  5. Step 5: Solve for x
    x = 188,902,402,857.71/494,545.67
  6. Step 6: Final answer
    x = 381,971.61

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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.