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Finding the Fourth Proportional to 484,086.40, 725,611.20 and 217,801.60

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Solution

The fourth proportional to 484,086.40, 725,611.20 and 217,801.60 is: 326,469.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,086.40 : 725,611.20 = 217,801.60 : x
  2. Step 2: Convert to fraction form
    484,086.40/725,611.20 = 217,801.60/x
  3. Step 3: Cross multiply
    484,086.40x = 725,611.20 × 217,801.60
  4. Step 4: Simplify right side
    484,086.40x = 158,039,280,337.92
  5. Step 5: Solve for x
    x = 158,039,280,337.92/484,086.40
  6. Step 6: Final answer
    x = 326,469.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.