Home / 449,120.87-619,788.53-245,176.28

Finding the Fourth Proportional to 449,120.87, 619,788.53 and 245,176.28

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Solution

The fourth proportional to 449,120.87, 619,788.53 and 245,176.28 is: 338,344.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,120.87 : 619,788.53 = 245,176.28 : x
  2. Step 2: Convert to fraction form
    449,120.87/619,788.53 = 245,176.28/x
  3. Step 3: Cross multiply
    449,120.87x = 619,788.53 × 245,176.28
  4. Step 4: Simplify right side
    449,120.87x = 151,957,441,847.24
  5. Step 5: Solve for x
    x = 151,957,441,847.24/449,120.87
  6. Step 6: Final answer
    x = 338,344.20

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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.