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Finding the Fourth Proportional to 488,109.68, 673,244.16 and 447,953.12

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Solution

The fourth proportional to 488,109.68, 673,244.16 and 447,953.12 is: 617,856.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,109.68 : 673,244.16 = 447,953.12 : x
  2. Step 2: Convert to fraction form
    488,109.68/673,244.16 = 447,953.12/x
  3. Step 3: Cross multiply
    488,109.68x = 673,244.16 × 447,953.12
  4. Step 4: Simplify right side
    488,109.68x = 301,581,821,993.78
  5. Step 5: Solve for x
    x = 301,581,821,993.78/488,109.68
  6. Step 6: Final answer
    x = 617,856.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.