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Finding the Fourth Proportional to 297,815.20, 446,722.80 and 247,076.80

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Solution

The fourth proportional to 297,815.20, 446,722.80 and 247,076.80 is: 370,615.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,815.20 : 446,722.80 = 247,076.80 : x
  2. Step 2: Convert to fraction form
    297,815.20/446,722.80 = 247,076.80/x
  3. Step 3: Cross multiply
    297,815.20x = 446,722.80 × 247,076.80
  4. Step 4: Simplify right side
    297,815.20x = 110,374,839,911.04
  5. Step 5: Solve for x
    x = 110,374,839,911.04/297,815.20
  6. Step 6: Final answer
    x = 370,615.20

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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.