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Finding the Fourth Proportional to 422,463.50, 582,999.66 and 231,483.74

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Solution

The fourth proportional to 422,463.50, 582,999.66 and 231,483.74 is: 319,447.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,463.50 : 582,999.66 = 231,483.74 : x
  2. Step 2: Convert to fraction form
    422,463.50/582,999.66 = 231,483.74/x
  3. Step 3: Cross multiply
    422,463.50x = 582,999.66 × 231,483.74
  4. Step 4: Simplify right side
    422,463.50x = 134,954,941,715.53
  5. Step 5: Solve for x
    x = 134,954,941,715.53/422,463.50
  6. Step 6: Final answer
    x = 319,447.58

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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.