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Finding the Fourth Proportional to 441,795.66, 609,485.50 and 278,352.95

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Solution

The fourth proportional to 441,795.66, 609,485.50 and 278,352.95 is: 384,005.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,795.66 : 609,485.50 = 278,352.95 : x
  2. Step 2: Convert to fraction form
    441,795.66/609,485.50 = 278,352.95/x
  3. Step 3: Cross multiply
    441,795.66x = 609,485.50 × 278,352.95
  4. Step 4: Simplify right side
    441,795.66x = 169,652,086,907.23
  5. Step 5: Solve for x
    x = 169,652,086,907.23/441,795.66
  6. Step 6: Final answer
    x = 384,005.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.