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Finding the Fourth Proportional to 422,693.40, 632,988.30 and 295,739.70

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Solution

The fourth proportional to 422,693.40, 632,988.30 and 295,739.70 is: 442,873.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,693.40 : 632,988.30 = 295,739.70 : x
  2. Step 2: Convert to fraction form
    422,693.40/632,988.30 = 295,739.70/x
  3. Step 3: Cross multiply
    422,693.40x = 632,988.30 × 295,739.70
  4. Step 4: Simplify right side
    422,693.40x = 187,199,769,945.51
  5. Step 5: Solve for x
    x = 187,199,769,945.51/422,693.40
  6. Step 6: Final answer
    x = 442,873.65

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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.