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Finding the Fourth Proportional to 577,108.57, 796,405.49 and 319,002.48

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Solution

The fourth proportional to 577,108.57, 796,405.49 and 319,002.48 is: 440,221.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,108.57 : 796,405.49 = 319,002.48 : x
  2. Step 2: Convert to fraction form
    577,108.57/796,405.49 = 319,002.48/x
  3. Step 3: Cross multiply
    577,108.57x = 796,405.49 × 319,002.48
  4. Step 4: Simplify right side
    577,108.57x = 254,055,326,395.62
  5. Step 5: Solve for x
    x = 254,055,326,395.62/577,108.57
  6. Step 6: Final answer
    x = 440,221.03

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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.