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Finding the Fourth Proportional to 351,648.54, 485,274.42 and 190,507.68

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Solution

The fourth proportional to 351,648.54, 485,274.42 and 190,507.68 is: 262,900.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,648.54 : 485,274.42 = 190,507.68 : x
  2. Step 2: Convert to fraction form
    351,648.54/485,274.42 = 190,507.68/x
  3. Step 3: Cross multiply
    351,648.54x = 485,274.42 × 190,507.68
  4. Step 4: Simplify right side
    351,648.54x = 92,448,503,917.55
  5. Step 5: Solve for x
    x = 92,448,503,917.55/351,648.54
  6. Step 6: Final answer
    x = 262,900.29

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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.