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Finding the Fourth Proportional to 444,140.40, 666,016.20 and 177,812.40

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Solution

The fourth proportional to 444,140.40, 666,016.20 and 177,812.40 is: 266,640.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,140.40 : 666,016.20 = 177,812.40 : x
  2. Step 2: Convert to fraction form
    444,140.40/666,016.20 = 177,812.40/x
  3. Step 3: Cross multiply
    444,140.40x = 666,016.20 × 177,812.40
  4. Step 4: Simplify right side
    444,140.40x = 118,425,938,960.88
  5. Step 5: Solve for x
    x = 118,425,938,960.88/444,140.40
  6. Step 6: Final answer
    x = 266,640.77

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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.