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Finding the Fourth Proportional to 422,762.08, 583,411.52 and 231,771.38

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Solution

The fourth proportional to 422,762.08, 583,411.52 and 231,771.38 is: 319,844.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,762.08 : 583,411.52 = 231,771.38 : x
  2. Step 2: Convert to fraction form
    422,762.08/583,411.52 = 231,771.38/x
  3. Step 3: Cross multiply
    422,762.08x = 583,411.52 × 231,771.38
  4. Step 4: Simplify right side
    422,762.08x = 135,218,093,098.30
  5. Step 5: Solve for x
    x = 135,218,093,098.30/422,762.08
  6. Step 6: Final answer
    x = 319,844.42

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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.