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Finding the Fourth Proportional to 670,936.60, 925,884.90 and 499,620.84

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Solution

The fourth proportional to 670,936.60, 925,884.90 and 499,620.84 is: 689,471.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,936.60 : 925,884.90 = 499,620.84 : x
  2. Step 2: Convert to fraction form
    670,936.60/925,884.90 = 499,620.84/x
  3. Step 3: Cross multiply
    670,936.60x = 925,884.90 × 499,620.84
  4. Step 4: Simplify right side
    670,936.60x = 462,591,391,481.32
  5. Step 5: Solve for x
    x = 462,591,391,481.32/670,936.60
  6. Step 6: Final answer
    x = 689,471.09

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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.