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Finding the Fourth Proportional to 351,658.31, 485,287.88 and 190,517.45

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Solution

The fourth proportional to 351,658.31, 485,287.88 and 190,517.45 is: 262,913.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,658.31 : 485,287.88 = 190,517.45 : x
  2. Step 2: Convert to fraction form
    351,658.31/485,287.88 = 190,517.45/x
  3. Step 3: Cross multiply
    351,658.31x = 485,287.88 × 190,517.45
  4. Step 4: Simplify right side
    351,658.31x = 92,455,806,034.48
  5. Step 5: Solve for x
    x = 92,455,806,034.48/351,658.31
  6. Step 6: Final answer
    x = 262,913.76

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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.