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Finding the Fourth Proportional to 318,286.52, 439,225.20 and 175,046.12

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Solution

The fourth proportional to 318,286.52, 439,225.20 and 175,046.12 is: 241,558.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,286.52 : 439,225.20 = 175,046.12 : x
  2. Step 2: Convert to fraction form
    318,286.52/439,225.20 = 175,046.12/x
  3. Step 3: Cross multiply
    318,286.52x = 439,225.20 × 175,046.12
  4. Step 4: Simplify right side
    318,286.52x = 76,884,667,066.22
  5. Step 5: Solve for x
    x = 76,884,667,066.22/318,286.52
  6. Step 6: Final answer
    x = 241,558.04

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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.