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Finding the Fourth Proportional to 437,556.60, 656,334.90 and 434,791.80

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Solution

The fourth proportional to 437,556.60, 656,334.90 and 434,791.80 is: 652,187.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,556.60 : 656,334.90 = 434,791.80 : x
  2. Step 2: Convert to fraction form
    437,556.60/656,334.90 = 434,791.80/x
  3. Step 3: Cross multiply
    437,556.60x = 656,334.90 × 434,791.80
  4. Step 4: Simplify right side
    437,556.60x = 285,369,032,573.82
  5. Step 5: Solve for x
    x = 285,369,032,573.82/437,556.60
  6. Step 6: Final answer
    x = 652,187.70

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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.