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Finding the Fourth Proportional to 576,170.74, 795,456.21 and 415,440.82

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Solution

The fourth proportional to 576,170.74, 795,456.21 and 415,440.82 is: 573,553.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,170.74 : 795,456.21 = 415,440.82 : x
  2. Step 2: Convert to fraction form
    576,170.74/795,456.21 = 415,440.82/x
  3. Step 3: Cross multiply
    576,170.74x = 795,456.21 × 415,440.82
  4. Step 4: Simplify right side
    576,170.74x = 330,464,980,156.49
  5. Step 5: Solve for x
    x = 330,464,980,156.49/576,170.74
  6. Step 6: Final answer
    x = 573,553.91

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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.