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Finding the Fourth Proportional to 617,269.21, 851,825.23 and 341,627.61

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Solution

The fourth proportional to 617,269.21, 851,825.23 and 341,627.61 is: 471,442.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,269.21 : 851,825.23 = 341,627.61 : x
  2. Step 2: Convert to fraction form
    617,269.21/851,825.23 = 341,627.61/x
  3. Step 3: Cross multiply
    617,269.21x = 851,825.23 × 341,627.61
  4. Step 4: Simplify right side
    617,269.21x = 291,007,017,462.60
  5. Step 5: Solve for x
    x = 291,007,017,462.60/617,269.21
  6. Step 6: Final answer
    x = 471,442.63

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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.