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Finding the Fourth Proportional to 355,225.94, 490,218.86 and 194,090.97

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Solution

The fourth proportional to 355,225.94, 490,218.86 and 194,090.97 is: 267,849.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,225.94 : 490,218.86 = 194,090.97 : x
  2. Step 2: Convert to fraction form
    355,225.94/490,218.86 = 194,090.97/x
  3. Step 3: Cross multiply
    355,225.94x = 490,218.86 × 194,090.97
  4. Step 4: Simplify right side
    355,225.94x = 95,147,055,645.40
  5. Step 5: Solve for x
    x = 95,147,055,645.40/355,225.94
  6. Step 6: Final answer
    x = 267,849.40

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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.