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Finding the Fourth Proportional to 447,426.59, 617,448.78 and 246,222.59

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Solution

The fourth proportional to 447,426.59, 617,448.78 and 246,222.59 is: 339,787.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,426.59 : 617,448.78 = 246,222.59 : x
  2. Step 2: Convert to fraction form
    447,426.59/617,448.78 = 246,222.59/x
  3. Step 3: Cross multiply
    447,426.59x = 617,448.78 × 246,222.59
  4. Step 4: Simplify right side
    447,426.59x = 152,029,834,716.70
  5. Step 5: Solve for x
    x = 152,029,834,716.70/447,426.59
  6. Step 6: Final answer
    x = 339,787.22

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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.