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Finding the Fourth Proportional to 576,424.28, 795,478.92 and 361,573.40

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Solution

The fourth proportional to 576,424.28, 795,478.92 and 361,573.40 is: 498,979.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,424.28 : 795,478.92 = 361,573.40 : x
  2. Step 2: Convert to fraction form
    576,424.28/795,478.92 = 361,573.40/x
  3. Step 3: Cross multiply
    576,424.28x = 795,478.92 × 361,573.40
  4. Step 4: Simplify right side
    576,424.28x = 287,624,017,732.73
  5. Step 5: Solve for x
    x = 287,624,017,732.73/576,424.28
  6. Step 6: Final answer
    x = 498,979.71

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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.