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Finding the Fourth Proportional to 358,591.13, 494,855.78 and 199,615.13

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Solution

The fourth proportional to 358,591.13, 494,855.78 and 199,615.13 is: 275,468.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,591.13 : 494,855.78 = 199,615.13 : x
  2. Step 2: Convert to fraction form
    358,591.13/494,855.78 = 199,615.13/x
  3. Step 3: Cross multiply
    358,591.13x = 494,855.78 × 199,615.13
  4. Step 4: Simplify right side
    358,591.13x = 98,780,700,855.95
  5. Step 5: Solve for x
    x = 98,780,700,855.95/358,591.13
  6. Step 6: Final answer
    x = 275,468.89

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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.