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Finding the Fourth Proportional to 496,216.80, 744,422.40 and 211,906.80

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Solution

The fourth proportional to 496,216.80, 744,422.40 and 211,906.80 is: 317,901.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,216.80 : 744,422.40 = 211,906.80 : x
  2. Step 2: Convert to fraction form
    496,216.80/744,422.40 = 211,906.80/x
  3. Step 3: Cross multiply
    496,216.80x = 744,422.40 × 211,906.80
  4. Step 4: Simplify right side
    496,216.80x = 157,748,168,632.32
  5. Step 5: Solve for x
    x = 157,748,168,632.32/496,216.80
  6. Step 6: Final answer
    x = 317,901.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.