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Finding the Fourth Proportional to 268,690.90, 402,453.15 and 222,034.90

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Solution

The fourth proportional to 268,690.90, 402,453.15 and 222,034.90 is: 332,570.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,690.90 : 402,453.15 = 222,034.90 : x
  2. Step 2: Convert to fraction form
    268,690.90/402,453.15 = 222,034.90/x
  3. Step 3: Cross multiply
    268,690.90x = 402,453.15 × 222,034.90
  4. Step 4: Simplify right side
    268,690.90x = 89,358,644,914.94
  5. Step 5: Solve for x
    x = 89,358,644,914.94/268,690.90
  6. Step 6: Final answer
    x = 332,570.42

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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.