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Finding the Fourth Proportional to 322,572.06, 483,909.12 and 85,933.80

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Solution

The fourth proportional to 322,572.06, 483,909.12 and 85,933.80 is: 128,914.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,572.06 : 483,909.12 = 85,933.80 : x
  2. Step 2: Convert to fraction form
    322,572.06/483,909.12 = 85,933.80/x
  3. Step 3: Cross multiply
    322,572.06x = 483,909.12 × 85,933.80
  4. Step 4: Simplify right side
    322,572.06x = 41,584,149,536.26
  5. Step 5: Solve for x
    x = 41,584,149,536.26/322,572.06
  6. Step 6: Final answer
    x = 128,914.29

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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.