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Finding the Fourth Proportional to 422,076.04, 582,551.07 and 286,153.69

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Solution

The fourth proportional to 422,076.04, 582,551.07 and 286,153.69 is: 394,950.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,076.04 : 582,551.07 = 286,153.69 : x
  2. Step 2: Convert to fraction form
    422,076.04/582,551.07 = 286,153.69/x
  3. Step 3: Cross multiply
    422,076.04x = 582,551.07 × 286,153.69
  4. Step 4: Simplify right side
    422,076.04x = 166,699,138,293.95
  5. Step 5: Solve for x
    x = 166,699,138,293.95/422,076.04
  6. Step 6: Final answer
    x = 394,950.49

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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.