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Finding the Fourth Proportional to 702,972.56, 1,054,488 and 204,336.56

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Solution

The fourth proportional to 702,972.56, 1,054,488 and 204,336.56 is: 306,513.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,972.56 : 1,054,488 = 204,336.56 : x
  2. Step 2: Convert to fraction form
    702,972.56/1,054,488 = 204,336.56/x
  3. Step 3: Cross multiply
    702,972.56x = 1,054,488 × 204,336.56
  4. Step 4: Simplify right side
    702,972.56x = 215,470,450,481.28
  5. Step 5: Solve for x
    x = 215,470,450,481.28/702,972.56
  6. Step 6: Final answer
    x = 306,513.32

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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.