Home / 447,138.36-617,055.17-243,190.89

Finding the Fourth Proportional to 447,138.36, 617,055.17 and 243,190.89

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Solution

The fourth proportional to 447,138.36, 617,055.17 and 243,190.89 is: 335,605.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,138.36 : 617,055.17 = 243,190.89 : x
  2. Step 2: Convert to fraction form
    447,138.36/617,055.17 = 243,190.89/x
  3. Step 3: Cross multiply
    447,138.36x = 617,055.17 × 243,190.89
  4. Step 4: Simplify right side
    447,138.36x = 150,062,194,755.45
  5. Step 5: Solve for x
    x = 150,062,194,755.45/447,138.36
  6. Step 6: Final answer
    x = 335,605.73

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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.