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Finding the Fourth Proportional to 483,245.30, 725,116.68 and 199,145.76

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Solution

The fourth proportional to 483,245.30, 725,116.68 and 199,145.76 is: 298,821.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,245.30 : 725,116.68 = 199,145.76 : x
  2. Step 2: Convert to fraction form
    483,245.30/725,116.68 = 199,145.76/x
  3. Step 3: Cross multiply
    483,245.30x = 725,116.68 × 199,145.76
  4. Step 4: Simplify right side
    483,245.30x = 144,403,912,327.28
  5. Step 5: Solve for x
    x = 144,403,912,327.28/483,245.30
  6. Step 6: Final answer
    x = 298,821.14

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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.