Home / 449,185.20-619,372.08-306,029.04

Finding the Fourth Proportional to 449,185.20, 619,372.08 and 306,029.04

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Solution

The fourth proportional to 449,185.20, 619,372.08 and 306,029.04 is: 421,977.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,185.20 : 619,372.08 = 306,029.04 : x
  2. Step 2: Convert to fraction form
    449,185.20/619,372.08 = 306,029.04/x
  3. Step 3: Cross multiply
    449,185.20x = 619,372.08 × 306,029.04
  4. Step 4: Simplify right side
    449,185.20x = 189,545,843,045.20
  5. Step 5: Solve for x
    x = 189,545,843,045.20/449,185.20
  6. Step 6: Final answer
    x = 421,977.04

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1.5x scale

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.