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Finding the Fourth Proportional to 883,472.64, 1,325,364.80 and 323,289.60

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Solution

The fourth proportional to 883,472.64, 1,325,364.80 and 323,289.60 is: 484,991.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,472.64 : 1,325,364.80 = 323,289.60 : x
  2. Step 2: Convert to fraction form
    883,472.64/1,325,364.80 = 323,289.60/x
  3. Step 3: Cross multiply
    883,472.64x = 1,325,364.80 × 323,289.60
  4. Step 4: Simplify right side
    883,472.64x = 428,476,656,046.08
  5. Step 5: Solve for x
    x = 428,476,656,046.08/883,472.64
  6. Step 6: Final answer
    x = 484,991.43

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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.