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Finding the Fourth Proportional to 576,749.52, 865,475.28 and 221,794.56

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Solution

The fourth proportional to 576,749.52, 865,475.28 and 221,794.56 is: 332,826.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,749.52 : 865,475.28 = 221,794.56 : x
  2. Step 2: Convert to fraction form
    576,749.52/865,475.28 = 221,794.56/x
  3. Step 3: Cross multiply
    576,749.52x = 865,475.28 × 221,794.56
  4. Step 4: Simplify right side
    576,749.52x = 191,957,708,918.48
  5. Step 5: Solve for x
    x = 191,957,708,918.48/576,749.52
  6. Step 6: Final answer
    x = 332,826.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.