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Finding the Fourth Proportional to 488,125.42, 673,139.90 and 380,656.24

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Solution

The fourth proportional to 488,125.42, 673,139.90 and 380,656.24 is: 524,936.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,125.42 : 673,139.90 = 380,656.24 : x
  2. Step 2: Convert to fraction form
    488,125.42/673,139.90 = 380,656.24/x
  3. Step 3: Cross multiply
    488,125.42x = 673,139.90 × 380,656.24
  4. Step 4: Simplify right side
    488,125.42x = 256,234,903,327.98
  5. Step 5: Solve for x
    x = 256,234,903,327.98/488,125.42
  6. Step 6: Final answer
    x = 524,936.61

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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.