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Finding the Fourth Proportional to 539,540.19, 809,306.64 and 179,738.60

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Solution

The fourth proportional to 539,540.19, 809,306.64 and 179,738.60 is: 269,606.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,540.19 : 809,306.64 = 179,738.60 : x
  2. Step 2: Convert to fraction form
    539,540.19/809,306.64 = 179,738.60/x
  3. Step 3: Cross multiply
    539,540.19x = 809,306.64 × 179,738.60
  4. Step 4: Simplify right side
    539,540.19x = 145,463,638,397.77
  5. Step 5: Solve for x
    x = 145,463,638,397.77/539,540.19
  6. Step 6: Final answer
    x = 269,606.68

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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.