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Finding the Fourth Proportional to 322,801.20, 484,201.80 and 283,402.80

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Solution

The fourth proportional to 322,801.20, 484,201.80 and 283,402.80 is: 425,104.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,801.20 : 484,201.80 = 283,402.80 : x
  2. Step 2: Convert to fraction form
    322,801.20/484,201.80 = 283,402.80/x
  3. Step 3: Cross multiply
    322,801.20x = 484,201.80 × 283,402.80
  4. Step 4: Simplify right side
    322,801.20x = 137,224,145,885.04
  5. Step 5: Solve for x
    x = 137,224,145,885.04/322,801.20
  6. Step 6: Final answer
    x = 425,104.20

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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.