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Finding the Fourth Proportional to 354,237.45, 488,839.91 and 193,086.33

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Solution

The fourth proportional to 354,237.45, 488,839.91 and 193,086.33 is: 266,454.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,237.45 : 488,839.91 = 193,086.33 : x
  2. Step 2: Convert to fraction form
    354,237.45/488,839.91 = 193,086.33/x
  3. Step 3: Cross multiply
    354,237.45x = 488,839.91 × 193,086.33
  4. Step 4: Simplify right side
    354,237.45x = 94,388,303,214.00
  5. Step 5: Solve for x
    x = 94,388,303,214.00/354,237.45
  6. Step 6: Final answer
    x = 266,454.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.