Home / 449,153.12-619,849.32-245,217.80

Finding the Fourth Proportional to 449,153.12, 619,849.32 and 245,217.80

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Solution

The fourth proportional to 449,153.12, 619,849.32 and 245,217.80 is: 338,410.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,153.12 : 619,849.32 = 245,217.80 : x
  2. Step 2: Convert to fraction form
    449,153.12/619,849.32 = 245,217.80/x
  3. Step 3: Cross multiply
    449,153.12x = 619,849.32 × 245,217.80
  4. Step 4: Simplify right side
    449,153.12x = 151,998,086,581.90
  5. Step 5: Solve for x
    x = 151,998,086,581.90/449,153.12
  6. Step 6: Final answer
    x = 338,410.40

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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.