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Finding the Fourth Proportional to 352,064.79, 485,849.54 and 190,919.79

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Solution

The fourth proportional to 352,064.79, 485,849.54 and 190,919.79 is: 263,469.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,064.79 : 485,849.54 = 190,919.79 : x
  2. Step 2: Convert to fraction form
    352,064.79/485,849.54 = 190,919.79/x
  3. Step 3: Cross multiply
    352,064.79x = 485,849.54 × 190,919.79
  4. Step 4: Simplify right side
    352,064.79x = 92,758,292,148.40
  5. Step 5: Solve for x
    x = 92,758,292,148.40/352,064.79
  6. Step 6: Final answer
    x = 263,469.38

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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.