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Finding the Fourth Proportional to 737,409.12, 1,106,704.24 and 338,237.92

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Solution

The fourth proportional to 737,409.12, 1,106,704.24 and 338,237.92 is: 507,627.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,409.12 : 1,106,704.24 = 338,237.92 : x
  2. Step 2: Convert to fraction form
    737,409.12/1,106,704.24 = 338,237.92/x
  3. Step 3: Cross multiply
    737,409.12x = 1,106,704.24 × 338,237.92
  4. Step 4: Simplify right side
    737,409.12x = 374,329,340,192.78
  5. Step 5: Solve for x
    x = 374,329,340,192.78/737,409.12
  6. Step 6: Final answer
    x = 507,627.76

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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.