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Finding the Fourth Proportional to 366,920.85, 550,381.28 and 338,052.45

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Solution

The fourth proportional to 366,920.85, 550,381.28 and 338,052.45 is: 507,078.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,920.85 : 550,381.28 = 338,052.45 : x
  2. Step 2: Convert to fraction form
    366,920.85/550,381.28 = 338,052.45/x
  3. Step 3: Cross multiply
    366,920.85x = 550,381.28 × 338,052.45
  4. Step 4: Simplify right side
    366,920.85x = 186,057,738,447.87
  5. Step 5: Solve for x
    x = 186,057,738,447.87/366,920.85
  6. Step 6: Final answer
    x = 507,078.68

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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.