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Finding the Fourth Proportional to 577,396.52, 796,774.92 and 319,258.50

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Solution

The fourth proportional to 577,396.52, 796,774.92 and 319,258.50 is: 440,558.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,396.52 : 796,774.92 = 319,258.50 : x
  2. Step 2: Convert to fraction form
    577,396.52/796,774.92 = 319,258.50/x
  3. Step 3: Cross multiply
    577,396.52x = 796,774.92 × 319,258.50
  4. Step 4: Simplify right side
    577,396.52x = 254,377,165,796.82
  5. Step 5: Solve for x
    x = 254,377,165,796.82/577,396.52
  6. Step 6: Final answer
    x = 440,558.88

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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.