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Finding the Fourth Proportional to 619,212.48, 929,232.96 and 225,228.48

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Solution

The fourth proportional to 619,212.48, 929,232.96 and 225,228.48 is: 337,993.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,212.48 : 929,232.96 = 225,228.48 : x
  2. Step 2: Convert to fraction form
    619,212.48/929,232.96 = 225,228.48/x
  3. Step 3: Cross multiply
    619,212.48x = 929,232.96 × 225,228.48
  4. Step 4: Simplify right side
    619,212.48x = 209,289,727,146.70
  5. Step 5: Solve for x
    x = 209,289,727,146.70/619,212.48
  6. Step 6: Final answer
    x = 337,993.39

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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.