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Finding the Fourth Proportional to 484,082.21, 668,023.94 and 269,217.68

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Solution

The fourth proportional to 484,082.21, 668,023.94 and 269,217.68 is: 371,515.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,082.21 : 668,023.94 = 269,217.68 : x
  2. Step 2: Convert to fraction form
    484,082.21/668,023.94 = 269,217.68/x
  3. Step 3: Cross multiply
    484,082.21x = 668,023.94 × 269,217.68
  4. Step 4: Simplify right side
    484,082.21x = 179,843,852,644.18
  5. Step 5: Solve for x
    x = 179,843,852,644.18/484,082.21
  6. Step 6: Final answer
    x = 371,515.10

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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.