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Finding the Fourth Proportional to 322,847.60, 483,964.20 and 251,730.80

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Solution

The fourth proportional to 322,847.60, 483,964.20 and 251,730.80 is: 377,356.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,847.60 : 483,964.20 = 251,730.80 : x
  2. Step 2: Convert to fraction form
    322,847.60/483,964.20 = 251,730.80/x
  3. Step 3: Cross multiply
    322,847.60x = 483,964.20 × 251,730.80
  4. Step 4: Simplify right side
    322,847.60x = 121,828,695,237.36
  5. Step 5: Solve for x
    x = 121,828,695,237.36/322,847.60
  6. Step 6: Final answer
    x = 377,356.67

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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.