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Finding the Fourth Proportional to 466,610.20, 699,137.70 and 438,616.60

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Solution

The fourth proportional to 466,610.20, 699,137.70 and 438,616.60 is: 657,193.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,610.20 : 699,137.70 = 438,616.60 : x
  2. Step 2: Convert to fraction form
    466,610.20/699,137.70 = 438,616.60/x
  3. Step 3: Cross multiply
    466,610.20x = 699,137.70 × 438,616.60
  4. Step 4: Simplify right side
    466,610.20x = 306,653,400,905.82
  5. Step 5: Solve for x
    x = 306,653,400,905.82/466,610.20
  6. Step 6: Final answer
    x = 657,193.95

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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.