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Finding the Fourth Proportional to 341,930.40, 512,895.60 and 325,600.80

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Solution

The fourth proportional to 341,930.40, 512,895.60 and 325,600.80 is: 488,401.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,930.40 : 512,895.60 = 325,600.80 : x
  2. Step 2: Convert to fraction form
    341,930.40/512,895.60 = 325,600.80/x
  3. Step 3: Cross multiply
    341,930.40x = 512,895.60 × 325,600.80
  4. Step 4: Simplify right side
    341,930.40x = 166,999,217,676.48
  5. Step 5: Solve for x
    x = 166,999,217,676.48/341,930.40
  6. Step 6: Final answer
    x = 488,401.20

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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.