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Finding the Fourth Proportional to 576,330.35, 864,418.96 and 171,515.30

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Solution

The fourth proportional to 576,330.35, 864,418.96 and 171,515.30 is: 257,250.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,330.35 : 864,418.96 = 171,515.30 : x
  2. Step 2: Convert to fraction form
    576,330.35/864,418.96 = 171,515.30/x
  3. Step 3: Cross multiply
    576,330.35x = 864,418.96 × 171,515.30
  4. Step 4: Simplify right side
    576,330.35x = 148,261,078,982.35
  5. Step 5: Solve for x
    x = 148,261,078,982.35/576,330.35
  6. Step 6: Final answer
    x = 257,250.17

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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.