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Finding the Fourth Proportional to 560,766.52, 773,766.57 and 331,291.90

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Solution

The fourth proportional to 560,766.52, 773,766.57 and 331,291.90 is: 457,128.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,766.52 : 773,766.57 = 331,291.90 : x
  2. Step 2: Convert to fraction form
    560,766.52/773,766.57 = 331,291.90/x
  3. Step 3: Cross multiply
    560,766.52x = 773,766.57 × 331,291.90
  4. Step 4: Simplify right side
    560,766.52x = 256,342,597,131.78
  5. Step 5: Solve for x
    x = 256,342,597,131.78/560,766.52
  6. Step 6: Final answer
    x = 457,128.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.