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Finding the Fourth Proportional to 519,983.88, 780,041.42 and 178,493.85

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Solution

The fourth proportional to 519,983.88, 780,041.42 and 178,493.85 is: 267,763.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,983.88 : 780,041.42 = 178,493.85 : x
  2. Step 2: Convert to fraction form
    519,983.88/780,041.42 = 178,493.85/x
  3. Step 3: Cross multiply
    519,983.88x = 780,041.42 × 178,493.85
  4. Step 4: Simplify right side
    519,983.88x = 139,232,596,215.27
  5. Step 5: Solve for x
    x = 139,232,596,215.27/519,983.88
  6. Step 6: Final answer
    x = 267,763.29

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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.