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Finding the Fourth Proportional to 493,666.38, 681,245.91 and 292,462.38

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Solution

The fourth proportional to 493,666.38, 681,245.91 and 292,462.38 is: 403,589.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,666.38 : 681,245.91 = 292,462.38 : x
  2. Step 2: Convert to fraction form
    493,666.38/681,245.91 = 292,462.38/x
  3. Step 3: Cross multiply
    493,666.38x = 681,245.91 × 292,462.38
  4. Step 4: Simplify right side
    493,666.38x = 199,238,800,203.87
  5. Step 5: Solve for x
    x = 199,238,800,203.87/493,666.38
  6. Step 6: Final answer
    x = 403,589.97

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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.