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Finding the Fourth Proportional to 647,794.53, 971,987.04 and 332,472.87

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Solution

The fourth proportional to 647,794.53, 971,987.04 and 332,472.87 is: 498,860.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,794.53 : 971,987.04 = 332,472.87 : x
  2. Step 2: Convert to fraction form
    647,794.53/971,987.04 = 332,472.87/x
  3. Step 3: Cross multiply
    647,794.53x = 971,987.04 × 332,472.87
  4. Step 4: Simplify right side
    647,794.53x = 323,159,320,791.61
  5. Step 5: Solve for x
    x = 323,159,320,791.61/647,794.53
  6. Step 6: Final answer
    x = 498,860.84

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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.