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Finding the Fourth Proportional to 422,013.06, 582,649.56 and 376,612.98

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Solution

The fourth proportional to 422,013.06, 582,649.56 and 376,612.98 is: 519,968.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,013.06 : 582,649.56 = 376,612.98 : x
  2. Step 2: Convert to fraction form
    422,013.06/582,649.56 = 376,612.98/x
  3. Step 3: Cross multiply
    422,013.06x = 582,649.56 × 376,612.98
  4. Step 4: Simplify right side
    422,013.06x = 219,433,387,087.29
  5. Step 5: Solve for x
    x = 219,433,387,087.29/422,013.06
  6. Step 6: Final answer
    x = 519,968.24

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1.5x scale

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.