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Finding the Fourth Proportional to 354,143.12, 488,703.25 and 192,994.73

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Solution

The fourth proportional to 354,143.12, 488,703.25 and 192,994.73 is: 266,324.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,143.12 : 488,703.25 = 192,994.73 : x
  2. Step 2: Convert to fraction form
    354,143.12/488,703.25 = 192,994.73/x
  3. Step 3: Cross multiply
    354,143.12x = 488,703.25 × 192,994.73
  4. Step 4: Simplify right side
    354,143.12x = 94,317,151,783.87
  5. Step 5: Solve for x
    x = 94,317,151,783.87/354,143.12
  6. Step 6: Final answer
    x = 266,324.96

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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.