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Finding the Fourth Proportional to 484,489.40, 668,588.85 and 269,629.41

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Solution

The fourth proportional to 484,489.40, 668,588.85 and 269,629.41 is: 372,084.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,489.40 : 668,588.85 = 269,629.41 : x
  2. Step 2: Convert to fraction form
    484,489.40/668,588.85 = 269,629.41/x
  3. Step 3: Cross multiply
    484,489.40x = 668,588.85 × 269,629.41
  4. Step 4: Simplify right side
    484,489.40x = 180,271,215,904.47
  5. Step 5: Solve for x
    x = 180,271,215,904.47/484,489.40
  6. Step 6: Final answer
    x = 372,084.95

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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.