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Finding the Fourth Proportional to 447,300.68, 617,266.42 and 248,383.21

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Solution

The fourth proportional to 447,300.68, 617,266.42 and 248,383.21 is: 342,764.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,300.68 : 617,266.42 = 248,383.21 : x
  2. Step 2: Convert to fraction form
    447,300.68/617,266.42 = 248,383.21/x
  3. Step 3: Cross multiply
    447,300.68x = 617,266.42 × 248,383.21
  4. Step 4: Simplify right side
    447,300.68x = 153,318,614,824.81
  5. Step 5: Solve for x
    x = 153,318,614,824.81/447,300.68
  6. Step 6: Final answer
    x = 342,764.10

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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.