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Finding the Fourth Proportional to 364,858.82, 547,306.68 and 140,140.47

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Solution

The fourth proportional to 364,858.82, 547,306.68 and 140,140.47 is: 210,217.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,858.82 : 547,306.68 = 140,140.47 : x
  2. Step 2: Convert to fraction form
    364,858.82/547,306.68 = 140,140.47/x
  3. Step 3: Cross multiply
    364,858.82x = 547,306.68 × 140,140.47
  4. Step 4: Simplify right side
    364,858.82x = 76,699,815,369.34
  5. Step 5: Solve for x
    x = 76,699,815,369.34/364,858.82
  6. Step 6: Final answer
    x = 210,217.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.