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Finding the Fourth Proportional to 437,693.58, 656,597.78 and 171,419.49

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Solution

The fourth proportional to 437,693.58, 656,597.78 and 171,419.49 is: 257,151.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,693.58 : 656,597.78 = 171,419.49 : x
  2. Step 2: Convert to fraction form
    437,693.58/656,597.78 = 171,419.49/x
  3. Step 3: Cross multiply
    437,693.58x = 656,597.78 × 171,419.49
  4. Step 4: Simplify right side
    437,693.58x = 112,553,652,442.65
  5. Step 5: Solve for x
    x = 112,553,652,442.65/437,693.58
  6. Step 6: Final answer
    x = 257,151.71

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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.