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Finding the Fourth Proportional to 322,605.44, 483,592.80 and 145,157.12

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Solution

The fourth proportional to 322,605.44, 483,592.80 and 145,157.12 is: 217,593.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,605.44 : 483,592.80 = 145,157.12 : x
  2. Step 2: Convert to fraction form
    322,605.44/483,592.80 = 145,157.12/x
  3. Step 3: Cross multiply
    322,605.44x = 483,592.80 × 145,157.12
  4. Step 4: Simplify right side
    322,605.44x = 70,196,938,100.74
  5. Step 5: Solve for x
    x = 70,196,938,100.74/322,605.44
  6. Step 6: Final answer
    x = 217,593.78

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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.