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Finding the Fourth Proportional to 290,644.68, 434,283.93 and 222,805.56

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Solution

The fourth proportional to 290,644.68, 434,283.93 and 222,805.56 is: 332,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,644.68 : 434,283.93 = 222,805.56 : x
  2. Step 2: Convert to fraction form
    290,644.68/434,283.93 = 222,805.56/x
  3. Step 3: Cross multiply
    290,644.68x = 434,283.93 × 222,805.56
  4. Step 4: Simplify right side
    290,644.68x = 96,760,874,222.65
  5. Step 5: Solve for x
    x = 96,760,874,222.65/290,644.68
  6. Step 6: Final answer
    x = 332,918.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.