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Finding the Fourth Proportional to 470,375.58, 648,475.60 and 323,195.95

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Solution

The fourth proportional to 470,375.58, 648,475.60 and 323,195.95 is: 445,568.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,375.58 : 648,475.60 = 323,195.95 : x
  2. Step 2: Convert to fraction form
    470,375.58/648,475.60 = 323,195.95/x
  3. Step 3: Cross multiply
    470,375.58x = 648,475.60 × 323,195.95
  4. Step 4: Simplify right side
    470,375.58x = 209,584,687,593.82
  5. Step 5: Solve for x
    x = 209,584,687,593.82/470,375.58
  6. Step 6: Final answer
    x = 445,568.81

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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.