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Finding the Fourth Proportional to 422,879.90, 583,009.70 and 335,953.41

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Solution

The fourth proportional to 422,879.90, 583,009.70 and 335,953.41 is: 463,167.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,879.90 : 583,009.70 = 335,953.41 : x
  2. Step 2: Convert to fraction form
    422,879.90/583,009.70 = 335,953.41/x
  3. Step 3: Cross multiply
    422,879.90x = 583,009.70 × 335,953.41
  4. Step 4: Simplify right side
    422,879.90x = 195,864,095,098.31
  5. Step 5: Solve for x
    x = 195,864,095,098.31/422,879.90
  6. Step 6: Final answer
    x = 463,167.20

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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.