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Finding the Fourth Proportional to 576,721.08, 864,537.30 and 277,371

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Solution

The fourth proportional to 576,721.08, 864,537.30 and 277,371 is: 415,794.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,721.08 : 864,537.30 = 277,371 : x
  2. Step 2: Convert to fraction form
    576,721.08/864,537.30 = 277,371/x
  3. Step 3: Cross multiply
    576,721.08x = 864,537.30 × 277,371
  4. Step 4: Simplify right side
    576,721.08x = 239,797,575,438.30
  5. Step 5: Solve for x
    x = 239,797,575,438.30/576,721.08
  6. Step 6: Final answer
    x = 415,794.71

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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.