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Finding the Fourth Proportional to 474,885.60, 711,197.60 and 274,784.28

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Solution

The fourth proportional to 474,885.60, 711,197.60 and 274,784.28 is: 411,522.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,885.60 : 711,197.60 = 274,784.28 : x
  2. Step 2: Convert to fraction form
    474,885.60/711,197.60 = 274,784.28/x
  3. Step 3: Cross multiply
    474,885.60x = 711,197.60 × 274,784.28
  4. Step 4: Simplify right side
    474,885.60x = 195,425,920,453.73
  5. Step 5: Solve for x
    x = 195,425,920,453.73/474,885.60
  6. Step 6: Final answer
    x = 411,522.10

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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.