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Finding the Fourth Proportional to 548,662.65, 757,041.01 and 376,517.81

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Solution

The fourth proportional to 548,662.65, 757,041.01 and 376,517.81 is: 519,516.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,662.65 : 757,041.01 = 376,517.81 : x
  2. Step 2: Convert to fraction form
    548,662.65/757,041.01 = 376,517.81/x
  3. Step 3: Cross multiply
    548,662.65x = 757,041.01 × 376,517.81
  4. Step 4: Simplify right side
    548,662.65x = 285,039,423,165.39
  5. Step 5: Solve for x
    x = 285,039,423,165.39/548,662.65
  6. Step 6: Final answer
    x = 519,516.73

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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.