Home / 447,138.19-617,052.32-243,189.10

Finding the Fourth Proportional to 447,138.19, 617,052.32 and 243,189.10

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Solution

The fourth proportional to 447,138.19, 617,052.32 and 243,189.10 is: 335,601.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,138.19 : 617,052.32 = 243,189.10 : x
  2. Step 2: Convert to fraction form
    447,138.19/617,052.32 = 243,189.10/x
  3. Step 3: Cross multiply
    447,138.19x = 617,052.32 × 243,189.10
  4. Step 4: Simplify right side
    447,138.19x = 150,060,396,507.10
  5. Step 5: Solve for x
    x = 150,060,396,507.10/447,138.19
  6. Step 6: Final answer
    x = 335,601.84

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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.