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Finding the Fourth Proportional to 422,692.18, 583,339 and 250,712.18

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Solution

The fourth proportional to 422,692.18, 583,339 and 250,712.18 is: 345,996.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,692.18 : 583,339 = 250,712.18 : x
  2. Step 2: Convert to fraction form
    422,692.18/583,339 = 250,712.18/x
  3. Step 3: Cross multiply
    422,692.18x = 583,339 × 250,712.18
  4. Step 4: Simplify right side
    422,692.18x = 146,250,192,369.02
  5. Step 5: Solve for x
    x = 146,250,192,369.02/422,692.18
  6. Step 6: Final answer
    x = 345,996.92

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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.