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Finding the Fourth Proportional to 576,205.08, 864,307.60 and 155,480.96

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Solution

The fourth proportional to 576,205.08, 864,307.60 and 155,480.96 is: 233,221.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,205.08 : 864,307.60 = 155,480.96 : x
  2. Step 2: Convert to fraction form
    576,205.08/864,307.60 = 155,480.96/x
  3. Step 3: Cross multiply
    576,205.08x = 864,307.60 × 155,480.96
  4. Step 4: Simplify right side
    576,205.08x = 134,383,375,383.30
  5. Step 5: Solve for x
    x = 134,383,375,383.30/576,205.08
  6. Step 6: Final answer
    x = 233,221.43

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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.