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Finding the Fourth Proportional to 484,719.84, 668,906.40 and 269,859.84

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Solution

The fourth proportional to 484,719.84, 668,906.40 and 269,859.84 is: 372,402.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,719.84 : 668,906.40 = 269,859.84 : x
  2. Step 2: Convert to fraction form
    484,719.84/668,906.40 = 269,859.84/x
  3. Step 3: Cross multiply
    484,719.84x = 668,906.40 × 269,859.84
  4. Step 4: Simplify right side
    484,719.84x = 180,510,974,078.98
  5. Step 5: Solve for x
    x = 180,510,974,078.98/484,719.84
  6. Step 6: Final answer
    x = 372,402.69

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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.