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Finding the Fourth Proportional to 354,249.88, 488,860.86 and 193,101.40

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Solution

The fourth proportional to 354,249.88, 488,860.86 and 193,101.40 is: 266,477.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,249.88 : 488,860.86 = 193,101.40 : x
  2. Step 2: Convert to fraction form
    354,249.88/488,860.86 = 193,101.40/x
  3. Step 3: Cross multiply
    354,249.88x = 488,860.86 × 193,101.40
  4. Step 4: Simplify right side
    354,249.88x = 94,399,716,471.20
  5. Step 5: Solve for x
    x = 94,399,716,471.20/354,249.88
  6. Step 6: Final answer
    x = 266,477.77

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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.