Home / 447,384.25-617,397.66-243,436.21

Finding the Fourth Proportional to 447,384.25, 617,397.66 and 243,436.21

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Solution

The fourth proportional to 447,384.25, 617,397.66 and 243,436.21 is: 335,945.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,384.25 : 617,397.66 = 243,436.21 : x
  2. Step 2: Convert to fraction form
    447,384.25/617,397.66 = 243,436.21/x
  3. Step 3: Cross multiply
    447,384.25x = 617,397.66 × 243,436.21
  4. Step 4: Simplify right side
    447,384.25x = 150,296,945,757.84
  5. Step 5: Solve for x
    x = 150,296,945,757.84/447,384.25
  6. Step 6: Final answer
    x = 335,945.99

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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.