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Finding the Fourth Proportional to 318,194.78, 439,097.55 and 174,953.66

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Solution

The fourth proportional to 318,194.78, 439,097.55 and 174,953.66 is: 241,429.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,194.78 : 439,097.55 = 174,953.66 : x
  2. Step 2: Convert to fraction form
    318,194.78/439,097.55 = 174,953.66/x
  3. Step 3: Cross multiply
    318,194.78x = 439,097.55 × 174,953.66
  4. Step 4: Simplify right side
    318,194.78x = 76,821,723,469.53
  5. Step 5: Solve for x
    x = 76,821,723,469.53/318,194.78
  6. Step 6: Final answer
    x = 241,429.87

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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.