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Finding the Fourth Proportional to 503,930.60, 695,425.16 and 274,487.20

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Solution

The fourth proportional to 503,930.60, 695,425.16 and 274,487.20 is: 378,792.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,930.60 : 695,425.16 = 274,487.20 : x
  2. Step 2: Convert to fraction form
    503,930.60/695,425.16 = 274,487.20/x
  3. Step 3: Cross multiply
    503,930.60x = 695,425.16 × 274,487.20
  4. Step 4: Simplify right side
    503,930.60x = 190,885,304,977.95
  5. Step 5: Solve for x
    x = 190,885,304,977.95/503,930.60
  6. Step 6: Final answer
    x = 378,792.84

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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.