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Finding the Fourth Proportional to 402,481.58, 603,722.37 and 360,491.18

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Solution

The fourth proportional to 402,481.58, 603,722.37 and 360,491.18 is: 540,736.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,481.58 : 603,722.37 = 360,491.18 : x
  2. Step 2: Convert to fraction form
    402,481.58/603,722.37 = 360,491.18/x
  3. Step 3: Cross multiply
    402,481.58x = 603,722.37 × 360,491.18
  4. Step 4: Simplify right side
    402,481.58x = 217,636,584,732.63
  5. Step 5: Solve for x
    x = 217,636,584,732.63/402,481.58
  6. Step 6: Final answer
    x = 540,736.76

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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.