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Finding the Fourth Proportional to 444,128.40, 665,998.20 and 177,800.40

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Solution

The fourth proportional to 444,128.40, 665,998.20 and 177,800.40 is: 266,622.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,128.40 : 665,998.20 = 177,800.40 : x
  2. Step 2: Convert to fraction form
    444,128.40/665,998.20 = 177,800.40/x
  3. Step 3: Cross multiply
    444,128.40x = 665,998.20 × 177,800.40
  4. Step 4: Simplify right side
    444,128.40x = 118,414,746,359.28
  5. Step 5: Solve for x
    x = 118,414,746,359.28/444,128.40
  6. Step 6: Final answer
    x = 266,622.77

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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.