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Finding the Fourth Proportional to 483,993.60, 725,115.60 and 414,009.60

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Solution

The fourth proportional to 483,993.60, 725,115.60 and 414,009.60 is: 620,266.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,993.60 : 725,115.60 = 414,009.60 : x
  2. Step 2: Convert to fraction form
    483,993.60/725,115.60 = 414,009.60/x
  3. Step 3: Cross multiply
    483,993.60x = 725,115.60 × 414,009.60
  4. Step 4: Simplify right side
    483,993.60x = 300,204,819,509.76
  5. Step 5: Solve for x
    x = 300,204,819,509.76/483,993.60
  6. Step 6: Final answer
    x = 620,266.09

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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.