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Finding the Fourth Proportional to 577,072.62, 796,401.45 and 318,944.01

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Solution

The fourth proportional to 577,072.62, 796,401.45 and 318,944.01 is: 440,165.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,072.62 : 796,401.45 = 318,944.01 : x
  2. Step 2: Convert to fraction form
    577,072.62/796,401.45 = 318,944.01/x
  3. Step 3: Cross multiply
    577,072.62x = 796,401.45 × 318,944.01
  4. Step 4: Simplify right side
    577,072.62x = 254,007,470,438.09
  5. Step 5: Solve for x
    x = 254,007,470,438.09/577,072.62
  6. Step 6: Final answer
    x = 440,165.52

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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.