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Finding the Fourth Proportional to 354,087.90, 488,634.96 and 192,944.34

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Solution

The fourth proportional to 354,087.90, 488,634.96 and 192,944.34 is: 266,259.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,087.90 : 488,634.96 = 192,944.34 : x
  2. Step 2: Convert to fraction form
    354,087.90/488,634.96 = 192,944.34/x
  3. Step 3: Cross multiply
    354,087.90x = 488,634.96 × 192,944.34
  4. Step 4: Simplify right side
    354,087.90x = 94,279,349,858.13
  5. Step 5: Solve for x
    x = 94,279,349,858.13/354,087.90
  6. Step 6: Final answer
    x = 266,259.73

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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.