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Finding the Fourth Proportional to 444,109.20, 666,228.60 and 207,459.60

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Solution

The fourth proportional to 444,109.20, 666,228.60 and 207,459.60 is: 311,219.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,109.20 : 666,228.60 = 207,459.60 : x
  2. Step 2: Convert to fraction form
    444,109.20/666,228.60 = 207,459.60/x
  3. Step 3: Cross multiply
    444,109.20x = 666,228.60 × 207,459.60
  4. Step 4: Simplify right side
    444,109.20x = 138,215,518,864.56
  5. Step 5: Solve for x
    x = 138,215,518,864.56/444,109.20
  6. Step 6: Final answer
    x = 311,219.67

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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.