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Finding the Fourth Proportional to 422,650.32, 583,317.24 and 261,557.25

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Solution

The fourth proportional to 422,650.32, 583,317.24 and 261,557.25 is: 360,986.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,650.32 : 583,317.24 = 261,557.25 : x
  2. Step 2: Convert to fraction form
    422,650.32/583,317.24 = 261,557.25/x
  3. Step 3: Cross multiply
    422,650.32x = 583,317.24 × 261,557.25
  4. Step 4: Simplify right side
    422,650.32x = 152,570,853,171.99
  5. Step 5: Solve for x
    x = 152,570,853,171.99/422,650.32
  6. Step 6: Final answer
    x = 360,986.01

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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.