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Finding the Fourth Proportional to 617,268.21, 851,823.86 and 341,626.61

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Solution

The fourth proportional to 617,268.21, 851,823.86 and 341,626.61 is: 471,441.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,268.21 : 851,823.86 = 341,626.61 : x
  2. Step 2: Convert to fraction form
    617,268.21/851,823.86 = 341,626.61/x
  3. Step 3: Cross multiply
    617,268.21x = 851,823.86 × 341,626.61
  4. Step 4: Simplify right side
    617,268.21x = 291,005,691,641.66
  5. Step 5: Solve for x
    x = 291,005,691,641.66/617,268.21
  6. Step 6: Final answer
    x = 471,441.24

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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.