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Finding the Fourth Proportional to 453,791.70, 680,687.55 and 433,124.55

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Solution

The fourth proportional to 453,791.70, 680,687.55 and 433,124.55 is: 649,686.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,791.70 : 680,687.55 = 433,124.55 : x
  2. Step 2: Convert to fraction form
    453,791.70/680,687.55 = 433,124.55/x
  3. Step 3: Cross multiply
    453,791.70x = 680,687.55 × 433,124.55
  4. Step 4: Simplify right side
    453,791.70x = 294,822,488,784.35
  5. Step 5: Solve for x
    x = 294,822,488,784.35/453,791.70
  6. Step 6: Final answer
    x = 649,686.83

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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.