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Finding the Fourth Proportional to 349,796.80, 482,791.28 and 222,447.76

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Solution

The fourth proportional to 349,796.80, 482,791.28 and 222,447.76 is: 307,023.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,796.80 : 482,791.28 = 222,447.76 : x
  2. Step 2: Convert to fraction form
    349,796.80/482,791.28 = 222,447.76/x
  3. Step 3: Cross multiply
    349,796.80x = 482,791.28 × 222,447.76
  4. Step 4: Simplify right side
    349,796.80x = 107,395,838,783.53
  5. Step 5: Solve for x
    x = 107,395,838,783.53/349,796.80
  6. Step 6: Final answer
    x = 307,023.50

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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.