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Finding the Fourth Proportional to 702,989.28, 1,054,396.44 and 282,123

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Solution

The fourth proportional to 702,989.28, 1,054,396.44 and 282,123 is: 423,149.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,989.28 : 1,054,396.44 = 282,123 : x
  2. Step 2: Convert to fraction form
    702,989.28/1,054,396.44 = 282,123/x
  3. Step 3: Cross multiply
    702,989.28x = 1,054,396.44 × 282,123
  4. Step 4: Simplify right side
    702,989.28x = 297,469,486,842.12
  5. Step 5: Solve for x
    x = 297,469,486,842.12/702,989.28
  6. Step 6: Final answer
    x = 423,149.39

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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.