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Finding the Fourth Proportional to 492,422.22, 680,102.87 and 330,996.92

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Solution

The fourth proportional to 492,422.22, 680,102.87 and 330,996.92 is: 457,152.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,422.22 : 680,102.87 = 330,996.92 : x
  2. Step 2: Convert to fraction form
    492,422.22/680,102.87 = 330,996.92/x
  3. Step 3: Cross multiply
    492,422.22x = 680,102.87 × 330,996.92
  4. Step 4: Simplify right side
    492,422.22x = 225,111,950,197.66
  5. Step 5: Solve for x
    x = 225,111,950,197.66/492,422.22
  6. Step 6: Final answer
    x = 457,152.30

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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.