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Finding the Fourth Proportional to 484,260.60, 726,390.90 and 422,052.60

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Solution

The fourth proportional to 484,260.60, 726,390.90 and 422,052.60 is: 633,078.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,260.60 : 726,390.90 = 422,052.60 : x
  2. Step 2: Convert to fraction form
    484,260.60/726,390.90 = 422,052.60/x
  3. Step 3: Cross multiply
    484,260.60x = 726,390.90 × 422,052.60
  4. Step 4: Simplify right side
    484,260.60x = 306,575,167,961.34
  5. Step 5: Solve for x
    x = 306,575,167,961.34/484,260.60
  6. Step 6: Final answer
    x = 633,078.90

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Similar ratio
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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.