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Finding the Fourth Proportional to 444,009.20, 666,013.80 and 194,691.20

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Solution

The fourth proportional to 444,009.20, 666,013.80 and 194,691.20 is: 292,036.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,009.20 : 666,013.80 = 194,691.20 : x
  2. Step 2: Convert to fraction form
    444,009.20/666,013.80 = 194,691.20/x
  3. Step 3: Cross multiply
    444,009.20x = 666,013.80 × 194,691.20
  4. Step 4: Simplify right side
    444,009.20x = 129,667,025,938.56
  5. Step 5: Solve for x
    x = 129,667,025,938.56/444,009.20
  6. Step 6: Final answer
    x = 292,036.80

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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.