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Finding the Fourth Proportional to 442,429.81, 610,604.97 and 251,471.90

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Solution

The fourth proportional to 442,429.81, 610,604.97 and 251,471.90 is: 347,060.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,429.81 : 610,604.97 = 251,471.90 : x
  2. Step 2: Convert to fraction form
    442,429.81/610,604.97 = 251,471.90/x
  3. Step 3: Cross multiply
    442,429.81x = 610,604.97 × 251,471.90
  4. Step 4: Simplify right side
    442,429.81x = 153,549,992,538.84
  5. Step 5: Solve for x
    x = 153,549,992,538.84/442,429.81
  6. Step 6: Final answer
    x = 347,060.69

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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.