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Finding the Fourth Proportional to 928,491.33, 1,392,770 and 297,323.13

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Solution

The fourth proportional to 928,491.33, 1,392,770 and 297,323.13 is: 445,995.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,491.33 : 1,392,770 = 297,323.13 : x
  2. Step 2: Convert to fraction form
    928,491.33/1,392,770 = 297,323.13/x
  3. Step 3: Cross multiply
    928,491.33x = 1,392,770 × 297,323.13
  4. Step 4: Simplify right side
    928,491.33x = 414,102,735,770.10
  5. Step 5: Solve for x
    x = 414,102,735,770.10/928,491.33
  6. Step 6: Final answer
    x = 445,995.26

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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.