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Finding the Fourth Proportional to 483,624.73, 721,887.26 and 447,998.50

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Solution

The fourth proportional to 483,624.73, 721,887.26 and 447,998.50 is: 668,709.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,624.73 : 721,887.26 = 447,998.50 : x
  2. Step 2: Convert to fraction form
    483,624.73/721,887.26 = 447,998.50/x
  3. Step 3: Cross multiply
    483,624.73x = 721,887.26 × 447,998.50
  4. Step 4: Simplify right side
    483,624.73x = 323,404,409,649.11
  5. Step 5: Solve for x
    x = 323,404,409,649.11/483,624.73
  6. Step 6: Final answer
    x = 668,709.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.