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Finding the Fourth Proportional to 422,671.06, 582,945.96 and 371,574.54

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Solution

The fourth proportional to 422,671.06, 582,945.96 and 371,574.54 is: 512,473.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,671.06 : 582,945.96 = 371,574.54 : x
  2. Step 2: Convert to fraction form
    422,671.06/582,945.96 = 371,574.54/x
  3. Step 3: Cross multiply
    422,671.06x = 582,945.96 × 371,574.54
  4. Step 4: Simplify right side
    422,671.06x = 216,607,872,159.26
  5. Step 5: Solve for x
    x = 216,607,872,159.26/422,671.06
  6. Step 6: Final answer
    x = 512,473.87

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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.