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Finding the Fourth Proportional to 261,673.80, 391,473.90 and 226,998.60

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Solution

The fourth proportional to 261,673.80, 391,473.90 and 226,998.60 is: 339,598.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,673.80 : 391,473.90 = 226,998.60 : x
  2. Step 2: Convert to fraction form
    261,673.80/391,473.90 = 226,998.60/x
  3. Step 3: Cross multiply
    261,673.80x = 391,473.90 × 226,998.60
  4. Step 4: Simplify right side
    261,673.80x = 88,864,027,236.54
  5. Step 5: Solve for x
    x = 88,864,027,236.54/261,673.80
  6. Step 6: Final answer
    x = 339,598.49

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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.