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Finding the Fourth Proportional to 486,593.80, 729,890.70 and 352,846.60

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Solution

The fourth proportional to 486,593.80, 729,890.70 and 352,846.60 is: 529,269.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,593.80 : 729,890.70 = 352,846.60 : x
  2. Step 2: Convert to fraction form
    486,593.80/729,890.70 = 352,846.60/x
  3. Step 3: Cross multiply
    486,593.80x = 729,890.70 × 352,846.60
  4. Step 4: Simplify right side
    486,593.80x = 257,539,451,866.62
  5. Step 5: Solve for x
    x = 257,539,451,866.62/486,593.80
  6. Step 6: Final answer
    x = 529,269.90

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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.