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Finding the Fourth Proportional to 422,671.56, 582,946.64 and 371,575.04

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Solution

The fourth proportional to 422,671.56, 582,946.64 and 371,575.04 is: 512,474.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,671.56 : 582,946.64 = 371,575.04 : x
  2. Step 2: Convert to fraction form
    422,671.56/582,946.64 = 371,575.04/x
  3. Step 3: Cross multiply
    422,671.56x = 582,946.64 × 371,575.04
  4. Step 4: Simplify right side
    422,671.56x = 216,608,421,075.87
  5. Step 5: Solve for x
    x = 216,608,421,075.87/422,671.56
  6. Step 6: Final answer
    x = 512,474.56

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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.