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Finding the Fourth Proportional to 447,405.30, 617,419.08 and 246,201.30

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Solution

The fourth proportional to 447,405.30, 617,419.08 and 246,201.30 is: 339,757.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,405.30 : 617,419.08 = 246,201.30 : x
  2. Step 2: Convert to fraction form
    447,405.30/617,419.08 = 246,201.30/x
  3. Step 3: Cross multiply
    447,405.30x = 617,419.08 × 246,201.30
  4. Step 4: Simplify right side
    447,405.30x = 152,009,380,140.80
  5. Step 5: Solve for x
    x = 152,009,380,140.80/447,405.30
  6. Step 6: Final answer
    x = 339,757.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.