Home / 447,589.10-617,686.87-243,653.60

Finding the Fourth Proportional to 447,589.10, 617,686.87 and 243,653.60

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Solution

The fourth proportional to 447,589.10, 617,686.87 and 243,653.60 is: 336,249.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,589.10 : 617,686.87 = 243,653.60 : x
  2. Step 2: Convert to fraction form
    447,589.10/617,686.87 = 243,653.60/x
  3. Step 3: Cross multiply
    447,589.10x = 617,686.87 × 243,653.60
  4. Step 4: Simplify right side
    447,589.10x = 150,501,629,548.23
  5. Step 5: Solve for x
    x = 150,501,629,548.23/447,589.10
  6. Step 6: Final answer
    x = 336,249.54

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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.