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Finding the Fourth Proportional to 422,670.56, 582,945.27 and 371,574.04

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Solution

The fourth proportional to 422,670.56, 582,945.27 and 371,574.04 is: 512,473.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,670.56 : 582,945.27 = 371,574.04 : x
  2. Step 2: Convert to fraction form
    422,670.56/582,945.27 = 371,574.04/x
  3. Step 3: Cross multiply
    422,670.56x = 582,945.27 × 371,574.04
  4. Step 4: Simplify right side
    422,670.56x = 216,607,324,300.19
  5. Step 5: Solve for x
    x = 216,607,324,300.19/422,670.56
  6. Step 6: Final answer
    x = 512,473.18

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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.