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Finding the Fourth Proportional to 447,853.72, 617,997.45 and 266,536.39

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Solution

The fourth proportional to 447,853.72, 617,997.45 and 266,536.39 is: 367,796.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,853.72 : 617,997.45 = 266,536.39 : x
  2. Step 2: Convert to fraction form
    447,853.72/617,997.45 = 266,536.39/x
  3. Step 3: Cross multiply
    447,853.72x = 617,997.45 × 266,536.39
  4. Step 4: Simplify right side
    447,853.72x = 164,718,809,352.21
  5. Step 5: Solve for x
    x = 164,718,809,352.21/447,853.72
  6. Step 6: Final answer
    x = 367,796.01

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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.