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Finding the Fourth Proportional to 433,471.20, 649,429.20 and 371,263.20

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Solution

The fourth proportional to 433,471.20, 649,429.20 and 371,263.20 is: 556,228.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,471.20 : 649,429.20 = 371,263.20 : x
  2. Step 2: Convert to fraction form
    433,471.20/649,429.20 = 371,263.20/x
  3. Step 3: Cross multiply
    433,471.20x = 649,429.20 × 371,263.20
  4. Step 4: Simplify right side
    433,471.20x = 241,109,162,965.44
  5. Step 5: Solve for x
    x = 241,109,162,965.44/433,471.20
  6. Step 6: Final answer
    x = 556,228.79

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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.