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Finding the Fourth Proportional to 775,611.78, 1,163,418 and 243,174.30

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Solution

The fourth proportional to 775,611.78, 1,163,418 and 243,174.30 is: 364,761.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,611.78 : 1,163,418 = 243,174.30 : x
  2. Step 2: Convert to fraction form
    775,611.78/1,163,418 = 243,174.30/x
  3. Step 3: Cross multiply
    775,611.78x = 1,163,418 × 243,174.30
  4. Step 4: Simplify right side
    775,611.78x = 282,913,357,757.40
  5. Step 5: Solve for x
    x = 282,913,357,757.40/775,611.78
  6. Step 6: Final answer
    x = 364,761.55

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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.