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Finding the Fourth Proportional to 458,245.65, 687,165.50 and 244,961.90

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Solution

The fourth proportional to 458,245.65, 687,165.50 and 244,961.90 is: 367,334.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,245.65 : 687,165.50 = 244,961.90 : x
  2. Step 2: Convert to fraction form
    458,245.65/687,165.50 = 244,961.90/x
  3. Step 3: Cross multiply
    458,245.65x = 687,165.50 × 244,961.90
  4. Step 4: Simplify right side
    458,245.65x = 168,329,361,833.81
  5. Step 5: Solve for x
    x = 168,329,361,833.81/458,245.65
  6. Step 6: Final answer
    x = 367,334.34

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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.