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Finding the Fourth Proportional to 367,907.10, 550,548.45 and 255,057.90

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Solution

The fourth proportional to 367,907.10, 550,548.45 and 255,057.90 is: 381,677.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,907.10 : 550,548.45 = 255,057.90 : x
  2. Step 2: Convert to fraction form
    367,907.10/550,548.45 = 255,057.90/x
  3. Step 3: Cross multiply
    367,907.10x = 550,548.45 × 255,057.90
  4. Step 4: Simplify right side
    367,907.10x = 140,421,731,505.26
  5. Step 5: Solve for x
    x = 140,421,731,505.26/367,907.10
  6. Step 6: Final answer
    x = 381,677.14

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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.