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Finding the Fourth Proportional to 577,394.48, 796,771.94 and 319,256.38

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Solution

The fourth proportional to 577,394.48, 796,771.94 and 319,256.38 is: 440,555.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,394.48 : 796,771.94 = 319,256.38 : x
  2. Step 2: Convert to fraction form
    577,394.48/796,771.94 = 319,256.38/x
  3. Step 3: Cross multiply
    577,394.48x = 796,771.94 × 319,256.38
  4. Step 4: Simplify right side
    577,394.48x = 254,374,525,249.98
  5. Step 5: Solve for x
    x = 254,374,525,249.98/577,394.48
  6. Step 6: Final answer
    x = 440,555.87

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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.