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Finding the Fourth Proportional to 482,622.80, 724,625.40 and 272,670.80

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Solution

The fourth proportional to 482,622.80, 724,625.40 and 272,670.80 is: 409,396.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,622.80 : 724,625.40 = 272,670.80 : x
  2. Step 2: Convert to fraction form
    482,622.80/724,625.40 = 272,670.80/x
  3. Step 3: Cross multiply
    482,622.80x = 724,625.40 × 272,670.80
  4. Step 4: Simplify right side
    482,622.80x = 197,584,187,518.32
  5. Step 5: Solve for x
    x = 197,584,187,518.32/482,622.80
  6. Step 6: Final answer
    x = 409,396.71

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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.