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Finding the Fourth Proportional to 368,804.10, 551,893.95 and 255,954.90

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Solution

The fourth proportional to 368,804.10, 551,893.95 and 255,954.90 is: 383,021.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,804.10 : 551,893.95 = 255,954.90 : x
  2. Step 2: Convert to fraction form
    368,804.10/551,893.95 = 255,954.90/x
  3. Step 3: Cross multiply
    368,804.10x = 551,893.95 × 255,954.90
  4. Step 4: Simplify right side
    368,804.10x = 141,259,960,782.86
  5. Step 5: Solve for x
    x = 141,259,960,782.86/368,804.10
  6. Step 6: Final answer
    x = 383,021.67

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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.