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Finding the Fourth Proportional to 444,005.20, 666,007.80 and 219,473.20

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Solution

The fourth proportional to 444,005.20, 666,007.80 and 219,473.20 is: 329,209.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,005.20 : 666,007.80 = 219,473.20 : x
  2. Step 2: Convert to fraction form
    444,005.20/666,007.80 = 219,473.20/x
  3. Step 3: Cross multiply
    444,005.20x = 666,007.80 × 219,473.20
  4. Step 4: Simplify right side
    444,005.20x = 146,170,863,090.96
  5. Step 5: Solve for x
    x = 146,170,863,090.96/444,005.20
  6. Step 6: Final answer
    x = 329,209.80

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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.