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Finding the Fourth Proportional to 574,321.52, 792,563.74 and 319,667.24

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Solution

The fourth proportional to 574,321.52, 792,563.74 and 319,667.24 is: 441,140.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,321.52 : 792,563.74 = 319,667.24 : x
  2. Step 2: Convert to fraction form
    574,321.52/792,563.74 = 319,667.24/x
  3. Step 3: Cross multiply
    574,321.52x = 792,563.74 × 319,667.24
  4. Step 4: Simplify right side
    574,321.52x = 253,356,663,289.88
  5. Step 5: Solve for x
    x = 253,356,663,289.88/574,321.52
  6. Step 6: Final answer
    x = 441,140.81

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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.