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Finding the Fourth Proportional to 338,359.87, 467,442.12 and 222,347.62

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Solution

The fourth proportional to 338,359.87, 467,442.12 and 222,347.62 is: 307,171.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,359.87 : 467,442.12 = 222,347.62 : x
  2. Step 2: Convert to fraction form
    338,359.87/467,442.12 = 222,347.62/x
  3. Step 3: Cross multiply
    338,359.87x = 467,442.12 × 222,347.62
  4. Step 4: Simplify right side
    338,359.87x = 103,934,642,869.75
  5. Step 5: Solve for x
    x = 103,934,642,869.75/338,359.87
  6. Step 6: Final answer
    x = 307,171.90

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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.