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Finding the Fourth Proportional to 488,466.15, 732,692.61 and 218,522.91

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Solution

The fourth proportional to 488,466.15, 732,692.61 and 218,522.91 is: 327,781.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,466.15 : 732,692.61 = 218,522.91 : x
  2. Step 2: Convert to fraction form
    488,466.15/732,692.61 = 218,522.91/x
  3. Step 3: Cross multiply
    488,466.15x = 732,692.61 × 218,522.91
  4. Step 4: Simplify right side
    488,466.15x = 160,110,121,272.70
  5. Step 5: Solve for x
    x = 160,110,121,272.70/488,466.15
  6. Step 6: Final answer
    x = 327,781.41

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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.