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Finding the Fourth Proportional to 437,632.44, 655,312.72 and 374,855.28

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Solution

The fourth proportional to 437,632.44, 655,312.72 and 374,855.28 is: 561,309.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,632.44 : 655,312.72 = 374,855.28 : x
  2. Step 2: Convert to fraction form
    437,632.44/655,312.72 = 374,855.28/x
  3. Step 3: Cross multiply
    437,632.44x = 655,312.72 × 374,855.28
  4. Step 4: Simplify right side
    437,632.44x = 245,647,433,143.16
  5. Step 5: Solve for x
    x = 245,647,433,143.16/437,632.44
  6. Step 6: Final answer
    x = 561,309.93

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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.